tonight, on "20/20." an all-new true confession. in the wake of his manslaughter verdict today, oscar mipistoriu ex-girlfriend. telling all about the explosive dark side her whole family saw. confessions of oscar's ex. and -- >> i turned into this vic sal saleswoman. plus, if you want it fast and frosty, you better be

friendly, or else. >> buzz kill. then, money-hungry mechanics taking you for a ride. from the idiot light on your dashboard, our hidden cameras catching them in the act. and a presidential hopeful and his fire-breathing first lady. brought down by their chef. be careful how you treat the help. tonight, the insiders who know all, see all, and now tell all. true confessions. sh! here now, david muir. >> good evening. tonight, you'll see our confrontation at the auto shop and at the cosmetics counter.

looking out for you. but first, what was it like to live with oscar pistorius, at home tonight, guilty of manslaughter. another longtime girlfriend before reeva steenkamp, confe confessing how scared she was. >> shot his girlfriend. >> girlfriend. >> reporter: when news broke that oscar pistorius had shot to death a woman in his house, many people assumed it was another blond beauty, samantha taylor. people thought it was you. >> people thought it was me. i received a lot of, you know, rest in peace messages. that was really scary. >> reporter: scary because samantha had been pistorius' long time girlfriend. just 17 when a 24-year-old pistorius swept her off her feet. he was already a worldwide celebrity.

their first date a month after his historic run as the first amputee to compete against able-bodied athletes in a world championship. samantha and i met outside capetown, the majestic seaside city where she now lives. >> we had a great time together. he was very charming. he is a really good guy, you know, he was very respectful -- very kind. >> reporter: samantha's mother trish eagerly welcomed the sports hero into their close knit family. how well would you say you knew oscar pistorius? >> very well. >> reporter: she says she soon took on an unexpected maternal role, offering him advice and support. >> he spent a lot of time at our house. i think in the beginning i saw what he wanted me to see. and then, as time went by i think i started seeing a very different person. >> reporter: trish says she quickly discovered a dark side his adoring fans never saw -- what she calls a "lost and lonely soul."

sometimes exploding with fits of anger. >> i heard him screaming at samantha once on the phone, yelling. >> reporter: through the phone? >> yeah, through the phone with foul language. that shocked me. >> reporter: were you ever frightened of his temper? >> oh, yeah, definitely. >> reporter: you say he would shout at you. for what? >> i didn't take my plate to the kitchen. >> reporter: he would shout at you for not taking your plate to the kitchen? >> yeah. >> reporter: she said life with the "blade runner" was like living on a razor's edge. so, did he drive fast all the time? >> yeah. pistorius had a love of danger and a need for speed. he drove in the car with you at 200 miles an hour on a busy highway. if anything happens, you both are dead. >> yeah. >> reporter: how close do you think you came to death with oscar? >> there were a couple times that were quite close. >> reporter: for pistorius, she says, there were no limits. not just with cars but with his everpresent guns.

>> he definitely had a passion for guns. >> did he always carry it with him? >> yes. >> reporter: he didn't just carry it. he used it. samantha was in the back seat of a car with pistorius and a friend when pistorus fired his gun. >> he shot out the roof of the -- >> so, before you knew it he suddenly shot out into the roof? >> yeah. >> how loud was it in the car? >> it was really loud. i got such a fright. >> i think oscar was an accident waiting to happen. >> reporter: that is the title of the book melinda ferguson has co-written with trish taylor detailing samantha's 18-month relationship with pistorius. >> he was the bullet in the chamber. the nike ad. the guy who was always -- something was gonna happen. in a sense, it was all leading up to some tragedy. >> reporter: that's because samantha and her mother say pistorius was deeply unstable, not the confident champion everyone else saw but an emotional wreck. the man some thought turned on the tears for courtroom theatrics, according to

samantha, was truly a constant crier. how many times have you heard him cry? >> a lot. >> ten? 20? 50? >> probably about, maybe 300? >> you're not exaggerating? >> no. >> reporter: the olympics, she says, was his lowest point. the man who proudly held his country's flag at the paralympics was cracking under the pressure, barely keeping a grip. >> he was crying to me on the phone every day. just saying how he was lonely and he didn't know what to do with his life. he was very isolated. i thought, "what if he commits suicide?" i was getting really, really worried about him. he had made all these promises on how he's gonna see a psychologist, how he was gonna change his life and everything was gonna change. >> reporter: but nothing did change, samantha says. and worst of all, she says he was cheating on her. >> you know, there were definitely a lot of other women in his life at the same time as me.

>> reporter: in a lengthy e-mail addressed to trish and samantha during his olympic training, pistorius wrote, "there are often very dark areas that haunt you. most of my adult life i have had moments that i sabotage the good that i have." >> "sometimes i find it easier to believe that there is darkness in others like i know it is in me." >> he writes a lot about his darkness. >> a lot. >> reporter: then, the final straw. samantha claims they had not officially broken when oscar shows up on television at an awards ceremony with another blonde, the woman who would die at his hand, reeva steenkamp. >> i went downstairs and the awards were on and oscar had reeva on his arm. >> and sam was watching it? >> yeah. and i just thought, "what a bas st. ard. >> reporter: oscar testified that they were no longer a couple when he was with reeva and that he never cheated on her.

but all agree that after that outing, their relationship was over. their next meeting would be in court. >> oscar got very angry. >> reporter: the last person pistorius may have wanted to see there, his ex. >> you said oscar screamed at you. >> yes. >> reporter: as for pistorius' testimony, samantha has intimate knowledge that gave her pause. you shared a bed with oscar. >> yeah. >> like reeva. the same bed, in the same room. >> uh-huh. >> reporter: she says parts of his story, that he believed reeva was an intruder, did not ring true. >> there were things that didn't match up to my experience staying at his house. >> reporter: "things" like pistorius claiming he didn't see reeva walk to the bathroom. >> i didn't see her getting out of bed. it was pitch black. >> reporter: and samantha says pistorius did not typically keep his room that dark. >> did he sleep with the curtains closed? >> he usually slept with the curtains fairly open. he always had some light coming in. >> reporter: samantha said that

although pistorius did startle easily, he would always ask her about any sudden noises. >> if there was a noise we discussed, "did you hear that?" >> reporter: when you heard that oscar didn't really make physical contact with reeva that night, did you find that odd? >> i -- i did. i found that very odd. >> reporter: pistorius' spokesperson declined to comment for this story. the judge ultimately ruling that pistorius shot reeva unintentionally. and today convicted him of manslaughter. >> he is found guilty of culpable homicide. >> reporter: just this morning samantha told me, "no one besides oscar knows what happened on the morning of reeva's death, but having said that we all need to move forward with our lives." >> do you still love him? >> i think a part of you will always have love for someone that you've loved. but i think that -- you know, that was a chapter in my life, and that chapter's closed.

a chapper closed, but pistorius' is still open. he could get 15 years, or nothing. next, "20/20" catching it all at the auto shop, and the confrontation you don't want to miss. and not only faster. stronger too. relief doesn't get any better than this. advil every time you take advil you're taking the medicine doctors recommend most for joint pain. more than the medicine in aleve or tylenol. the medicine in advil is the number one doctor recommendation for joint pain. relief doesn't get any better than this. advil chose prego traditional over ragu traditional. prego?! but i buy ragu. [ thinking ] i wonder what other questionable choices i've made. [ pop muzak plays ]

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we're back, and what really happens when you drop off your car at the shop? are you being taken for a ride? gio benitez catching some mechanics in the act. >> reporter: stephanie wash is making the drive that every vehicle owner dreads, a visit to

the auto mechanic to fix a problem under the hood. but in this case stephanie is actually an abc news producer, and her infiniti suv has been equipped with an "optional" accessory. our hidden cameras. "20/20" is going undercover at auto repair shops to see if what our confessor says is true, that there are way too many mechanics out there who are willing to take advantage of their customers by doing unnecessary repairs. >> you're a bit at the mercy of whoever's opening up your hood and looking at it. >> reporter: joe the mechanic should know. he's been fixing cars for more than 40 years. we've agreed to put him in a disguise with hollywood makeup and not use his real name. in exchange, joe agreed to tell "20/20" about the dirty little secrets of his trade. joe says there are even special names for these transaxle transgressions. like "gravy work," which means billing the customer for much more time than a repair job actually takes. >> like a brake job.

most shops will charge you an hour and a half to two hours to turn the rotors and put pads on it. if you're good and got good equipment, you can do it in 20 or 30 minutes. that's gravy. >> reporter: you're doing it in less time, but you're getting extra money for it. >> that's right. >> joe says another inside trick that some mechanics use is the so-called "wallet flush," where a routine oil change can turn into something much more expensive. >> an $18 oil change, well, they lose money on that. the idea is to get you in so they can sell you the coolant flushes, trans flushes, power steering flushes. that's where the money is. >> reporter: in other words, if you're flush with cash, get ready to be hosed. >> it's real easy to check the transmission fluid. this is actually very clean. but i've seen, honestly i've seen recommendations for flushes on fluid that looks like this. >> reporter: joe says what drives all of this is the tiny profit margin at many repair shops. he says most mechanics are honest, but all too many are pressured by their bosses to push unnecessary work. he used to do it himself.

>> i'm ashamed a bit to admit it, but when your boss tells you either you do it here or the door's right there, what are you going to do? i need a job. everybody needs a job. >> reporter: getting back to the tricks of the trade. joe says one of the most common and profitable ways to jack up a repair bill is exploiting fears over the check engine light, affectionately known by some in the trade as the "idiot light." >> it's expensive. so that's -- the people are afraid of the check engine light. >> reporter: you see that check engine light, you say, "oh, my gosh, something's wrong with it." you go to the mechanic, and really it could be anything that's happening in here, right? >> oh, yeah. >> reporter: that brings us back to our hidden camera test with stephanie and her suv. we wanted to see if mechanics would try to take advantage of her over that so-called "idiot light." but first, stephanie takes her infiniti to two highly-rated mechanics to ensure her vehicle will be in perfect working order. >> this car is road ready. absolutely nothing wrong.

>> reporter: ace mechanic audra fordin comes up with a plan to make our check engine light go on. >> so what we're going to do is disconnect the mass airflow sensor. >> reporter: she simply unplugs this cord connected to the mass airflow sensor, and makes that check engine light goes on. audra says a diagnostic scan, which can cost from $50 to $100, will quickly detect the problem. we hit the road, taking stephanie's infiniti to auto repairs shops in new york and new jersey. >> good morning. i have an appointment. >> reporter: fixing the check engine light was a no-brainer for this shop, quality auto in belleville, new jersey. they quickly spot the problem and simply plug the cord back in. they don't even bother charging stephanie for their time. >> took all of 15 minutes. i didn't charge you anything. >> reporter: now check out what this manager tells us at the firestone repair shop in montclair, new jersey. >> hi. >> hi, how you doing? >> good. >> reporter: his technician says our mass air flow sensor is filled with carbon and needs to be cleaned.

he recommends a fuel system cleaning for an extra $99. >> the car is going to run a lot smoother, more efficient, and it will prevent this from happening again. >> reporter: but our hidden camera shows a technician is able to locate what's really wrong with the car. here he plugs in that loose wire and closes the hood. still, he tells us he did an extensive cleaning of that mass airflow sensor. >> did you guys clean inside there? >> yeah, yeah, yeah. i had to open it all up. >> reporter: when we later contacted the shop, that manager tells us he was shocked. the corporate headquarters told us "it is unacceptable to us if misleading, incomplete, or inaccurate information was presented at our montclair location." and they are investigating. that brings us to this repair shop, monty's in north babylon, new york. >> hi, i called. my service engine light's on.

>> oh, okay. >> reporter: our hidden cameras show that monty's fixed the actual problem seconds after opening that hood, by plugging that loose wire back in. but all of a sudden the mechanic tells our producer she should replace the entire mass air flow sensor, stripping her wallet of more than 300 bucks. maybe we should call this place the full monty. >> i'm not trying to scare you, but i let you know from the beginning those parts are expensive. >> reporter: but there's good news. the mechanic then suggests a less expensive fix. he can take the sensor apart and fix it for the bargain price of 190 bucks. >> and $190, i can remedy your problem. >> reporter: when we return to pick up the vehicle, the mechanic proudly shows stephanie their work, saying the sensor has been taken apart and fixed and that the engine is sparkling clean to boot. >> so, what i did. i open it and it goes one by one, clean it, you know. >> mm-hmm, okay. >> i should have made a video so i show you the video. >> reporter: oh, wait, there is video.

when we check our hidden cameras we discover that monty's never even touched that sensor they said they would take apart. we did get a quick spray and rinse of that engine. and, of course, our loose wire was plugged in. gio benitez, with "20/20." time to get some answers. so we return to monty's for a little heart to heart. you said you took apart the sensor, and you actually didn't do anything. >> i don't know what you're talking about. >> reporter: you don't? >> no. >> reporter: you want to see what the video says? because you never actually took it apart. there was a hidden camera watching every single moment. and all you did was, you sprayed it. >> you know what, you get the camera off. >> reporter: he now says another mechanic did the actual work. that mechanic later told us all he did to fix the problem was plug the wire back in, and there must have been a break in communication. the automotive service association says "the majority

of the service repair industry is ethical" and only charges the consumer for necessary work. >> most mechanics are honest. >> reporter: our expert mechanic audra agrees. still, she says you should always question your estimate and get a second opinion if you are skeptical. by the way, if you think it's only women who are vulnerable to shady mechanics, think again. >> women are preyed upon because it's assumed that they don't know anything, when in fact the dads of today don't know very much about cars either. >> reporter: and she has some very simple advice. read your owner's manual. >> that would solve a lot of problems because you would have confidence. why do people take advantage of you? because you don't know. don't let them. when we return, at the makeup counter for a different kind of making up. from the name game to the we're

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now get 1gb of bonus data, and our best pricing ever on the more everything plan. "20/20" continues with confessions at the cosmetics

counter. here's rebecca jarvis. >> this is actually kim kardashian's face primer. its eco friendly. you see how the pores have just diminished? it's actually made in france. it's amazing. this is very exclusive. >> reporter: this cosmetics saleswoman full of it. >> 15 years younger. it instantly moisturizes. it refines your pores. you'll see the results within 3 months. >> reporter: she's making up bogus information to entice customers into buying the products she's pushing. >> i had really bad acne. it doesn't show. because i've been using this cream. >> reporter: and it's working. >> okay, yours is going to be $40. i'm going to ring it up and give you a receipt. >> before she takes your money, i'm rebecca jarvis with abc's "20/20," and this is all a joke. she made the whole thing up, all of it. >> reporter: "she" is former cosmetics saleswoman shaina azad. shaina agreed to show off the hardball tactics she and some of her colleagues used to sell, sell, sell.

do you feel bad about this at all? >> oh, yeah. of course, i do. that's why i left. i don't do sales anymore. i had actually turned into this kind of vicious, malicious saleswoman. and all i wanted to do was sell and get into their wallet. and that was horrible. >> reporter: and just how is that done? shaina agreed to return to the cosmetics counter one more time to show us some tricks of her former trade. we set up a kiosk in a new york mall. decorated it, outfitted it with hidden cameras on top, in a mirror and on a nearby escalator. we repackaged simple drugstore moisturizer to give her fancy product to sell, then sent her to work. >> you look like a stylish mom that loves cosmetics. >> reporter: sales tactic number one -- reel in passersby with flattery. >> you already have beautiful makeup. i just want to show you a few things. >> reporter: the sweet talk continues once they've stopped chat.

shaina says the point is to turn passersby into temporary friends. have you paid people compliments you didn't believe? >> oh, yeah. "oh my god, i love your eyes," and you actually don't. >> you don't. >> but -- no. you create a relationship. and once they have that trust with you, they feel confident enough to get anything that you recommend. >> reporter: next step? the claim game -- which starts with name-dropping. >> kim kardashian's makeup artist actually uses this. >> reporter: you literally told a complete fake story. >> complete fake story. >> reporter: also fake, yet equally effective, shaina's claim that the product is foreign. >> it's from france. >> she mentioned it was made in france. >> things that are made in france are good. >> reporter: and take a look at this trick. once she gets you to actually hold the product in your hand, you're close to sold. >> i'll let you hold onto that

for just a second. you can hold onto that. you were already feeling it, you had the ownership and you were going to buy it. >> just what i need, more makeup! >> reporter: and yet here's another. once the customer has tried a few samples, but isn't quite ready to buy, it's time to call in a coworker for help. the drive-by. >> the drive-by, yeah. sometimes you'll have somebody just like, walk over like, "oh my god. that's so great" and just like walk away. >> wait. they do this? >> like yeah, really quick. >> this is a tactic? >> oh, yeah. >> reporter: and here's a time tested tactic, the makeover guilt trip. >> you say, "you know what? i just spent an hour with the last customer and she didn't buy a single thing. can you believe it?" so, now they're thinking about it. they're like, "oh, my god. like, that was gonna be me and she's gonna hate me. i don't want this makeup artist to hate me." >> reporter: when it's time to close a sale, shaina says there's a sure-fire way to push past a customer's indecision. >> i'm so sorry, but i have to check if we even have this in stock because we've been selling out like crazy.

"let me check the back. i might have one more left." i'll wait in the back for a little bit. >> you will literally wait there? >> oh, yeah. >> reporter: then, the salesperson makes a triumphant return. >> this is our last one. you are so lucky. >> this is your $10 back. she got you hook, line and sinker! >> yes, she did! >> reporter: sales tactics aside, do you really need to spend big bucks to look great? to find out, we challenged shaina and abc makeup artist camille zola to go shopping. first, we hit a drugstrore. >> that looks good. >> reporter: total spent, $180. then our next stop, a high end department store with all the top brand names.

the high end totals almost $600. here's what we bought in both places. you can see the eye shadow alone was $79 versus $8 at the drug store. since the department store makeup costs three times as much, is it really three times better? to find out, shaina and camille went to work on these adorable sisters, identical twins. one gets the drug store makeup, the other, the fancy stuff. here's the before and after. can you tell the difference? our next stop, times square. come on! could they tell which cosmetics cost the big bucks? which is wearing the expensive makeup? >> i think the one on the right. this looks more natural than that. >> what makes it hard to tell them apart? >> well, they're twins.

>> are you ready for the big reveal? 1, 2, 3! >> ah! wow, congratulations. >> surprised? >> yes. >> $600! >> reporter: of course, there could be other benefits to the pricey stuff that we didn't test. for example, it may last longer. but still, if you want to save -- >> happy drugstore makeup shopping! >> thank you. so, what do you think? do you get what you pay for? tweet me with #abc2020. and get ready for a different kind of jolt. next, baristas, what you don't know about the people that

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"20/20" continues with confessions of a coffee maker. here's nick watt. >> reporter: the most valuable traded commodity on earth -- coffee! we want it early. we want it fast. we want it now. and beleaguered baristas get paid, on average, $8.66 an hour, to deliver fix, after fix, after fix. >> baristas are basically drug dealers. >> reporter: former barista hayley and current barista max say you and i are the addicts. >> so when the, you know, junkie comes to get his fix, he's not gonna be super polite. he's just really focused on getting what he's there for. >> reporter: so, they created

this video, a parody of "i dreamed a dream." ♪ wait your turn and stay in line we all have a place to be i shall drink the drink ♪ >> reporter: they call themselves "les miserabaristas." >> it was all my pent up sadness and frustration. and i took it to a creative outlet. >> there's one instance in which this lady told me, "you don't know what you are doing?" and so, i took the caramel drizzle and i wrote the letters f.u. on top! >> reporter: and then, there's this guy. >> i had a customer threaten to stab me one time. >> reporter: let's call him "bill." he still works at starbucks and writes a blog called "your barista hates you." he insists on full disguise because he fears he'll get fired for spilling the beans. >> our number one tool in the arsenal is definitely the decaf button.

>> reporter: they'll decaf you when you ordered caff! >> just out and out rudeness is a quick way to get a decaf shot. >> reporter: they will steal your buzz away from you! >> i've given decaf to people who wanted the extra caffeine. absolutely. >> reporter: the problem for a barista though is that you're out in the open. you're not back in the kitchen where you can spit in the soup. >> if someone's being particularly rude, you can add little extra charges. like normally if you say, "i want a latte with caramel, vanilla and chocolate." >> reporter: the barista could charge you just once for a wee dash of each. or, if you're unpleasant, charge you three times. >> that's like a dollar difference at least. >> reporter: so, youe being nice. you're not gonna get decaffed. but how do get the most caffeine possible, maximum buzz for your buck? apparently not with this -- >> the frappuccinos are mostly ice, very little coffee. our profit margin on frappuccinos is huge. >> reporter: and when it comes to lattes at starbucks, just order the medium.

the large does not have more caffeine, just more steamed milk. whatever your choice may be, we were told to go for a light roast. >> dark roast has less caffeine. >> dark roast, less caffeine. >> reporter: executive coffee chef jeremy gursey -- yes, that's now a thing -- knows his roasts. according to jeremy, iced coffee can be the most potent. >> this is my pride and joy. this is a kyoto, eight-hour, cold filter, drip. >> that is delicious. oh, my goodness, there's texture. it's kind of -- oh, yeah. >> like a fine bourbon. >> reporter: clearly, i'm now an expert. but the real experts, the baristas we talked to, say that you, the customer, really have no idea what you're drinking. >> there are the select few who are truly coffee aficionados. but the vast majority of my customers actually don't really know anything. >> this is nice coffee. >> reporter: remember that

'80s, from before we got all fancy pants about a cup of joe? >> we're secretly replacing the fine coffee usually served here with rich, dark, sparkling folger's crystals. >> reporter: we did something similar at local favorite philz in santa monica. we lined up a cup of supermarket standard -- 5 cents a cup. a premium java from a well-known coffee chain -- two or three bucks. and a third -- the most expensive coffee on earth. it's a blind tasting. are you like a coffee type guy? >> i drink coffee every day. >> reporter: patrick guessed this is the most expensive. it's the cheapest. patrick, we have a total failure! >> i hope i don't get this wrong. >> i hope you do. >> take your time, swill away, do whatever you need to do. >> reporter: ashley guessed the coffee chain coffee was the most expensive. far from it. so, we really don't know what we're drinking. and what is that mystery, most expensive coffee on earth? this, $75 a cup.

>> this one? >> is that that coffee where the bean comes out the monkey butt? >> reporter: nate, clearly a connoisseur, was almost right. indonesian civet cats eat coffee berries, they ferment inside and out poops the beans. >> that has depth, character, warmth, subtlety. it's wrong, but it's right. nate, by the way, nailed the taste test, but still thinks maybe coffee chain coffee isn't quite worth it. >> so, do i think i'm getting fleeced and used? of course! but will i continue to do it? of course! >> reporter: the barista guild of america told us, "since the invention of coffee drinking by the ethiopians, making coffee for another person has been a deeply caring and personal act." this is a real organization by the way. "we use service skills to help us navigate challenging customer interactions."

as for starbucks, one of the most admired companies in the world, it told us it is appalled by bill the barista's claims of decaffing rude customers. "the behavior described would not be tolerated and is not reflective of the character of our 300,000 partners around the world." so, how do you get on your barista's good side? >> know what you want before you get to the register. >> good tip. >> reporter: and speaking of tips -- >> tipping also helps. >> oh, yes. >> if you put in that dollar, we will remember you. >> saying, "how are you" back is really nice. >> reporter: just don't be a dope! you won't get decaffed. you might even get a treat. >> people i liked i would reward, give them a little extra whipped cream or draw a little smiley face on their cup. when we return, the little

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tonight, don't mistreat the help. confessions from a high-end chef. worked for a high-powered political couple. but what they were kaucaught do, and how hot it was in the kitchen. here's amy robach. >> breaking news from richmond tonight -- >> former governor and his wife were found -- >> guilty of most of the charges that they faced. >> this is an absolutely earth-shattering verdict. >> reporter: virginia governor, bob mcdonnell, and his wife maureen found guilty of corruption. >> the mcdonnells were weeping aloud and gasping. his head in his hands. >> the conviction carries decades in prison.

>> reporter: they seemed the perfect pair in the perfect dream house -- the governor's mansion, basking in the allure of the grand chandeliers, regal columns and attentive help ready to answer every whim. but when it came to the mcdonnells, more was never enough. the onetime presidential hopeful's career, toppled off the political pedestal, all traced back to the governor's former chef, todd schneider. >> i stood up for myself. and i feel glad i did. but i lost everything in between. >> please raise your right hand. >> reporter: schneider arrived at the mansion shortly after mcdonnell was sworn in 2010 with great fanfare. >> so help me, god. >> reporter: as virginia's new first lady, maureen mcdonnell -- a former nfl cheerleader -- even brought her pom-poms to the inauguration. >> classic political couple, perfect hair, perfect marriage on the rise. >> reporter: schneider was mrs. mcdonnell's personal pick for executive chef. so, you did it for the experience?

>> it's a good thing to have on your resume. i don't know about now but then it was a good thing to have on your resume. >> reporter: it started out as a four-star experience -- schneider cooking for some bold-named celebrities. and the cherry on top? a budding personal relationship with the first family. >> i was part of the family, so i thought. >> reporter: but there was trouble brewing from the start. schneider says maureen became increasingly unpredictable, overly demanding and became verbally abusive to the staff. what would she say? >> she would just say anything that came out of her mouth. but she really talked down to you. and she would swear at you. >> reporter: the governor's poll numbers and national profile were surging. he gave the gop response to the 2010 state of the union address. >> good evening, i'm bob mcdonnell. >> reporter: but inside the mansion, the first lady's popularity rating was crumbling. >> the maids had to go through a hard time 'cause the sheets were off about an inch on either side. she'd strip the bed and make them come back up and make it again. she was not balanced. so, you had your dr. jekyll and mr. hyde going through. >> reporter: that same unpredictability schneider says extended into the kitchen.

the governor had a habit of throwing last minute dinner parties with custom menus. when the mansion's kitchen didn't have the requested food, schneider had to rely on supplies from his own catering company. >> i had to call my restaurant and i had to say, "i need all this food. bring it down to me." and then, i would give them the food and we were invoicing them. >> reporter: it would be an exchange system that would eventually land everyone in hot water. it was a conflict of interest for todd, a state employee, to be paid as a private vendor. so, he says the director of the mansion came up with an alternate plan. >> so, they said, "well, why don't we do this? we'll do a barter system. you can take back what we owe you in food and we'll call it that." >> reporter: and how often would you have to borrow from your company? >> all the time. this governor had parties every day. >> reporter: schneider started noticing one guest in particular showing up with increasing frequency. johnnie williams, the sweet talking ceo of a pharmaceutical company called star scientific, which was eager to get

state-funded research for their new drug. how did the mcdonnells treat him? >> he got carte blanche. he was treated very well. he was there for a reason. >> reporter: williams began lavishing the first couple with gifts, everything from golf clubs and outings, to a $20,000 designer shopping spree in new york city, to a $6,500 rolex that maureen then gave to the governor as a birthday present, to paid vacations complete with a loaned ferrari. >> you'd hear through the grapevine in the house where it was coming from. >> reporter: it coincided with a lot of visits? >> yes. >> reporter: so, there was suspicions that something improper was going on? >> yes. and for me, the big deal was the check for the catering. >> reporter: schneider is referring to this now-famous check, a gift for $15,000, used to help pay for the wedding of "first daughter" caitlin mcdonnell. the mcdonnells had hired schneider's company to cater the affair, but when todd realized

the source of the check it was alarm bells, not wedding bells, that started ringing. >> that's what started it was the check and the $15,000 that we -- they received from johnnie williams. for some reason, i don't know why something said, "copy this check." >> reporter: schneider suspected that investigators might come calling and he was right. in february of 2012, the fbi showed up but their suspect wasn't the governor, it was schneider himself. >> they knocked on my door and they started asking me questions. >> reporter: remember that unorthodox bartering system between todd's catering company and the mansion? the fbi had gotten a tip. you were accused of embezzlement? >> yes, of stealing food. and i said, "but we have a -- a barter system. >> reporter: schneider was counting on the governor to explain the arrangement and clear him. but by now, "washington post" reporter rosalind helderman had started writing articles about the cozy relationship between williams and the first couple. feeling the heat, the administration chose not to come to schneider's defense.

>> they should have backed me up. they should have said, the mansion, "yes, we did have this barter system. todd did have an agreement that he was allowed to do that." but i think -- i don't think they really knew who or what i had. and i didn't think they'd thought i'd fight so much. >> reporter: staring at four new felony counts and left to twist in the wind, schneider fought back, playing the ace he'd kept in his vest -- that $15,000 check from johnnie williams. >> he told them about a bigger fish. it's a classic tale. todd was really the pebble, the pebble in the pond that started the investigation. >> reporter: and as the governor gave his state of the commonwealth speech, little did he know, the state of his own house would soon collapse. >> former governor bob mcdonnell and his wife are facing 14 felony charges. this is day one of the corruption trial against the former first couple. >> reporter: the final disgrace, served by a virginia jury last week, the former governor convicted on 11 counts of corruption. his wife, 9 counts of corruption and obstruction of justice. collectively, they face a

maximum of 400 years behind bars. >> thank you all for the way you've handed this. i really appreciate it. >> i feel redemption because the governor and all the people that work for him threw me under the bus. >> does karma come to mind? >> yes. and i've been known for saying that. yes, karma is a bitch and i do ♪ ♪

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