- cause of death blt force trauma to the head. - prints? - i dusted twice. none on the tub, none on the body. only other ones we found were the vic's and an adam saunders. we think he was having a relationship with the victim. his prints are all over the home and murder weapon. - you mean the champagne bottle? - how'd you know that? - [chuckles] - here. - thanks. is there any chance, if saunders was having a relationship with the vic, that he could have handled the champagne bottle, say, days ago, then had it planted? - that'd be pretty slick. but who'd go through the trouble? you'd have to, what, search the building's garbage? anyway, basement's guarded. - [laughs] unless they had a garbage truck.

mr. reese, we have many safe houses in the city where adam could be taken. - i know. the safest i've ever been was when i was anonymous. here. you'll be safe, too. - wait, you can't leave me here. i can't sleep here. - why not? i did. right over there, for four months. see that woman? her name is joan. if you need anything, just ask her. oh, uh, just don't touch anything in her cart. here. don't use this phone until i call you on it. - wait, wait, wait. victor, go find victor. - your pal from the nightclub? - he's the senior broker. if someone's putting clients in tritak, whether or not they want it,

- [on television] if this bill had not been passed today, it would have been put aside indefinitely, which we feel would be detrimental to the state of new york. - we have a problem, mr. reese. - what else is new? - have you heard about utica shale or the process of fracking? - it's, um, underground rock formations. - companies dig down and fracture shale beds to release natural gas. they just passed a bill to start fracking in upstate new york, which means they wouldn't need a pipeline up from the south. - and they don't need to invest in a company like tritak. how much did baylor zimm have invested in tritak? or how much did its clients? - millions. millions upon millions, and they will lose everything. adam saw this coming, tried to stop it. - which is why they tried to kill him.

- adam told me to talk to victor. said he would have to know. [trading floor chatter] - the bill passed overnight. i'm trying to sell your shares as fast as i can. you have to understand-- - hello, victor. you're a patsy. they just used you, but your boss is dead, adam's life is on the line, and millions were lost. people needed that money. families. - i thought tritak was a safe bet. someone got to the senators, someone powerful enough to push that shale fracking bill through the system. - but why build tritak up? why silence adam...

- oh, no. [phone keypad beeping] [on phone] listen, it's a short sale. someone had the brokers pump up the price and then sold high, because they knew that the bill was gonna pass and kill tritak. whoever shorted it stands to make millions on this. - that's why they targeted you. so how do we find the short-seller? - look around you--there's 50 brokers selling off tritak. we need to find the guys who already sold it days ago, because now they have to cover the short and buy it back. i got to go. hey, uncle bob. - adam, what's going on? you told me tritak was safe. - bob, i'm sorry. i'm so sorry. i'll get your money back. - it's not just my money, adam.

it's every employee that works for me. it's my business, the sowoski name. - bob, i-i-- look-- - but you're not a sowoski, at least you never thought you were. you're a saunders. isn't that right, adam? - no, listen-- listen, i'll get it back. even if it takes the rest of my life, i will get it back. [device beeps] - i got to go. - hey, boss? i think i got a location on the kid. - i'm going to need your help on this, finch. i need you to get inside baylor zimm. - i'm on the trading floor now. [computer beeps] [whirring and beeping]

paul ashton. - adam's friend. - also a senior risk manager. i found his short-sale orders from last week, and the buy orders for tritak, issued to him this morning. - for how many? - about $4 million. - where is paul now? [computer beeps, whirs] - i'm about to find out. his phone is tethered to his calendar. maybe i can hack into his gps. - paul? it can't be. no, i-i mean, really, it can't. they put measures in place to catch securities fraud, insider trading, short-sale manipulation, how did paul do it? - paul isn't working alone. he's got a friend in the s.e.c. - i spent my entire career chasing down rogue traders,

when the country needed us watching the closest. pity. you can't beat 'em, you join 'em. - and make millions along the way. - 300 million, to be exact. where are we? - tritak was down to $4 a share by closing bell today. when the market opens tomorrow, it'll be $2. i've got buy orders in place to pick up the shares that we need. - and the loose ends? - well, baylor won't be asking any more questions, but adam is still out there. he could be a problem. - i have it under control. - [chuckles] you'd be better off balling up that paper and stuffing it under your clothes. it'll keep you warm. - see, how did-- how did it get to this? i mean...

- i know. your uncle told us. - you talked to him? - he told us about your father and the $200 he'd send you. - he doesn't know the end of the story. he doesn't know when i was 16, i went to go find my father. i took a train to new mexico, and i found him... and he had a-a new family. and then when i went to him, he tried to hand me another $200. [laughs] i didn't want the money. i wanted a family. - and you found one...

an uncle who spent his life slaving over a food-truck counter... for you. - i'll get bob's money back. i promised him that i would. - when did you talk to your uncle? fact. advil pain relievers are used by more households than any other leading brand. to treat their aches and pains more people reach for advil. relief doesn't get any better than this. advil. for adults with an advanced lung cancer called "squamous non-small cell", previously treated with platinum-based chemotherapy, it's not every day something this big comes along.

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for person of interest provided by... - get down! [gunfire] [people screaming] [gunfire continues] - what are you doing? we need to go! we need to move!

now move. - so paul was working with rasmussen all along? - on a massive short-sell bet against tritak. it's lost 90% of its value already. but an s.e.c. investigator and a banker do not shoot up a homeless encampment with automatic weapons. - no. there was some serious muscle behind this. - how's adam doing? - not bad for a guy who's lost everything. - does he still have a suit? - why? - paul and rasmussen need tritak to bottom out before they can collect on their bet. - what are you talking about, finch? - ever try to catch a falling knife, mr. reese? - sounds like a good way to get cut.

have adam put on a tie. he's going back to work. [telephones ringing, trading floor chatter] - tritak, i need 1,000 units of tritak. i need to buy. i got to buy on tritak. - what the hell? victor, i need your help. i've got buy orders here for 4 million shares of tritak. can you fill these immediately? - uh, i can buy what's available, but some new player hit the market hard today-- been buying all morning. there's a lot out there to buy. i mean, would you look? tritak just hit 15 a unit. by the time the dumb money gets back in, it'll be at an all-time high. - who's the new player? - anonymous. but i have a number. maybe you can strike a deal. - hey, you called. what's going on? - i'm saving our asses. that's what's going on. [cell phone ringing]

- this is harold crane. yes? - sir, this is paul ashton with baylor zimm investments. i need to speak with you about your majority share in tritak energy. - i'm sorry. you'll need to speak to my banker about that. - no, sir! i-- [cell phone ringing] - sorry, paul, but my little buying frenzy just reinvigorated the tritak m.l.p., and i own all the shares. don't worry. i'll sell you what you need. after all, what are friends for? your little game of "hide the short"... only works when it's legal. - you can't prove anything. - no, i can't, but victor and a dozen other brokers just lining up to testify against you-- they'll do anything to avoid jail time. - let us through here. that's the guy. over here. there! get him!

[indistinct chatter] [engine turning] - it's all of it, all your money. you were the only person that i counted on when i was younger, and i wish that you could have counted on me, and i hope that someday maybe you can forgive me. - of course i forgive you, kid. you're family. of course i forgive you... [laughs] even if i can't stand your taste in suits. - [laughs] - so let me ask you this-- what are we gonna do about reinvesting? - i think that maybe you and i could look into franchising the business, but first i got some people i want you to feed.

- [grunts] i didn't know what you were into before we met, john, and i don't know now, but... you sure know how to keep things interesting. - i saw signs posted downstairs. someone finally bought this old place. - "new ownership." it looks like we'll have to make camp elsewhere. [horns honking] - actually... i know the new owner. he's a smart kid... with a good head on his shoulders. i don't think you'll have to be moving anywhere. hey... i never said thank you... for looking after me when i needed it. - who's looking after you these days?

- some big-shot broker, huh? - where's the other one? - what other one? - there are supposed to be two suspects. - you talking about the s.e.c. guy? - yeah. - they found him dead in his apartment in queens-- self-inflicted g.s.w. to the head. guess he couldn't stand the thought of otisville. - hmm. i heard they both were arrested. - i don't know what to tell you.

- i was thinking... all of this was all too slick, too complicated. a stockbroker and a finance cop couldn't pull this off. no, there was someone else behind the scenes, someone who hired a team of assassins, who knew a bill would pass in state government weeks before it did, someone who could use $300 million to finance a personal war. - so what's this? - the bigger picture. [cell phone ringing]

it's been a long time.

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i couldn't comprehend what was happening. i couldn't sleep. losing my husband. it's an image that is never going to go away. >> a father out for a walk with his son. >> i heard shots, very loud shots. >> the child survives. the father doesn't. >> all he was asking, was, "honey, tell me how's the baby? is the baby ok?" >> it was an execution? >> yes. >> the killers never caught. >> waiting for a phone call. waiting for a break. nothing was coming in. >> then one month later another shooting. the victim? the dead man's partner. and no question this time who the killer was. >> i panicked because i thought he was reaching for his gun.

and that's when i shot. >> was it self-defense? >> the lead detective kept telling us everyone's life is in danger. >> or was it something else? >> it's a lousy excuse to kill somebody. >> what secrets were stored on this tape? >> when he come out, i was ready. >> villain? >> i just couldn't believe what i heard. >> or victim? >> hug your family, kiss your children. you don't know when you're going to lose them. >> i'm lester holt and this is "dateline." here's keith morrison with "miami heat." >> reporter: it was dusk in miami. the day's heat retreated, parks filled up, soccer games were called to order. orlando mesa loved the evening ritual. he and his 18-month old son, noah. orlando doted on the boy.

>> he was a hands-on dad. >> reporter: and noah's mom, cindy, was there to record it all. >> my husband was an outdoor person. so, you know, he was always doin' things with noah. >> reporter: and so, on a spring evening in the gathering dusk, orlando walked behind noah, who rolled along on his toy car. a security camera watched them toddle down the sidewalk. they disappeared around a corner. >> that was the worst day of my life. >> reporter: what happened? well, that's still being debated, in a way. a chain of events, certainly. of which a father/son evening stroll may have been the first. but certainly not the last. but, a moment first to fill you in. cindy, or janepsy, the name she was born with in cuba, came to miami as a teenager. she was bright, and ambitious. she learned english pretty much

from scratch, became a hair dresser, experimented with her own, quite frequently, as you will see. it was back in 2006. cindy carballo had been invited to a super bowl party. lots of people there, in the crowd, and the noise. she didn't notice orlando mesa, but he noticed her. >> according to him, it was love at first sight. [ laughter ] >> reporter: did you feel that way, too? >> not at first. >> reporter: and then, after that super bowl party, she got very interested in that funny, handsome guy named orlando, the mechanic with the wild curly hair. >> he definitely was a jokester. so he made me laugh. >> reporter: orly, as she called him, was as ambitious as she was. he didn't just fix cars, he bought a couple of lunch trucks, and then he branched out into real estate development.

again. but orlando, not a man inclined to entertain doubts. and one weekend he invited cindy to a barbecue party. >> he surprised me. he knew that i loved mariachis. and then all of a sudden, all these mariachis, they come in and singin', and he gets on his knees and he proposed. so it was exciting. >> reporter: that's a day you don't forget. >> never. >> reporter: so in short order, they got married, and had a baby, and became a family. why'd you pick noah as a name? >> they had a book on baby names. and i saw the name noah. and it said it meant new beginning. so i loved it. >> reporter: so it was. a new beginning. as amply recorded as any new parents could make it. but, if this was the beginning, then what was this?

that early evening in april 2008, orlando and noah heading down the street with his toy car. they turned the corner. out of camera range now. and then -- >> i heard shots, very loud shots. and i went outside. that's when i saw my husband, full of blood crying for help. i'm sorry, it's an image that is never going away. i didn't see my son at first. so i thought the worst. i went crazy because i thought my son was kidnapped. >> reporter: then from the front yard near where orlando fell, a neighbor called out. >> and she said, "no, i have your son." my brave neighbor, she took my son from my husband's arms. when i ran to grab my son, my son was shot, full of blood. >> reporter: neighbors called

911 -- >> a baby's been shot. >> reporter: in the distance, as the caller spoke to 911, a woman screamed. it was cindy. >> how old is the baby? [ screaming ] >> oh my god, oh my god, oh my god. >> reporter: cindy held her son for dear life. orlando tried to speak. >> he was askin' was, "honey, tell me how's the baby. is the baby okay?" >> reporter: then an agonizing decision, ride in the ambulance with her baby, or stay by her dying husband. >> of course i was torn in two. but my main concern was my baby. so i jumped immediately in the ambulance. >> reporter: as cindy sped away to the hospital with noah, the paramedics worked on orlando where he fell, but it was too late. they could not save him. detective felix guadarrama of the north miami police department went to the hospital, to check on the boy, and deliver the bad news. >> that's the toughest part of my job. >> reporter: how did she take

it? >> she obviously became even more upset, yeah, everybody started crying. it was just horrible to hear the news like that. >> reporter: but little noah would make it. would be ok, thanks to his father's selflessness. >> my son was shot in his arm and in his leg. but you know his father protected him. >> reporter: held him and covered him? >> when they were shooting at him, he just lifted my son up. >> reporter: keep 'em away from his body. >> yes. >> reporter: what do you miss most about him? >> being with him all the time. life made sense. >> that's what i knew. us together with our baby. gone. and little noah was wounded and suffering. so she took him home to care for him there, in a house that felt

empty. >> i couldn't sleep. seeing my baby suffer with the wounds. losing my husband. he was very loved by everyone in my family. >> reporter: clearly, however, there was someone who didn't feel the same way about orlando mesa. and before long, said cindy, she and the north miami police came to the very same conclusion about who that might be. when we return, cindy points to someone she thinks is a possible suspect and begs for help in bringing her husband's killer to justice. >> hug your family. kiss your children. you don't know when you are going to lose them. more amazing than ever. (sniff) uh honey, isn't that the dog's towel?

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>> reporter: they were just going for a walk, on a pleasant miami evening and yet, when her husband was gunned down and killed, her 18-month-old son wounded, cindy carballo didn't quite get it right away, that her's was a particular kind of nightmare. this was an execution. what does it do to your head when you think that? somebody wanted him dead. >> i couldn't comprehend what was happening.

lost my husband. >> reporter: three days after the shooting, cindy went before tv cameras at police headquarters. >> hug your family, kiss your children, you don't know when you're going to lose them. >> reporter: holding her son, noah, his injured arm wrapped in bandages. she appealed for help to find the killers. >> the most little information that you know please come forward. >> reporter: police had urged her to make the appeal hoping that all that emotion would help generate some much needed leads. though there was one lead, both amazing and ultimately frustrating. right there just below the roof line of cindy and orlando's house was a security camera. north miami police major. >> we had video footage that we obtained from the victim's home. >> reporter: that's the camera that captured father and son heading out of the house and down the street on that last

walk they took together. then, watch this -- a car barrels up to the curb. two men burst out, guns drawn, run around the corner, out of camera range. that's where they opened fire on orlando and noah. within fifteen seconds, they're back in the car, speeding away. but they're not done. >> he was on the ground, they come back by and now, you have -- a second -- rally of shots. >> reporter: it was an execution? >> yes. >> reporter: nobody could identify the two you can see on the video. best witnesses could say was -- they were african american males with dreadlocks. one caller said she thought she saw a third man in the car besides the two shooters. >> i think there was about three people in the car. >> reporter: they found the car eventually. abandoned. it had been stolen. and the evidence trail cooled dramatically. as for what the motive was, no one seemed to know. >> it was shocking because my

husband was very much liked. he didn't have any known enemies. >> reporter: was that true? detectives at the north miami police department threw out a wide net. and, they got some help from cindy. >> when you're working a homicide, you -- you wanna reach out to the people who were close to the victim. >> reporter: yeah. >> spouses, best friends, business associates. you want to get as much information. are there beefs? are there bad businesses? >> reporter: that's when cindy thought about her husband's new business partner, a man named ilan nissim. the guy he got involved with in real estate development. >> when the police questioned me and they said "who are his friends and partners, did he have any incident," that's when i said, well, you know, there was an incident with this business venture. >> reporter: cindy met ilan nissim and his girlfriend, neketa, at a birthday party for their daughter who was noah's age.

and then, said cindy, orlando told her later, not long before he was murdered, that ilan lost a big packet of cash orlando entrusted him with. >> my husband gave ilan nissim money to purchase lots to get in the business. >> reporter: a lot of money? >> my knowledge was $180,000. and there was a robbery and the money was gone. >> reporter: 180,000 lost? in cash? that's the sort of thing that makes a cop sit up and take notice. tell me about the links between nissim and orlando. what were they doing together? >> some small real estate, from what we understand. >> reporter: but -- all these sound like businesses on the up and up. >> yes. >> reporter: cindy began to suspect that nissim must have had reason to want her husband dead. but as for what he may have done. >> i don't think she could say -- she just kept saying that he had to be involved. and there was an issue over

involved. >> reporter: and then, the 20th of may. one month to the day after the murder, the investigation had stalled. cindy was at home, alone, packing to move out of the house she shared with orlando. what happened? well, sometimes it can take a while to figure out who did what to whom. coming up, a knock, a shot and a mystery.

because i though >> reporter: burying a loved one is never easy. burying a loved one who was

and to make it somehow worse, said cindy, police told her that her suspicions about that guy ilan nissim were well placed and they gave her a warning. >> the lead detective, she kept telling us, this is a dangerous individual. >> reporter: and then, this was pretty terrifying, said cindy, after the murder, nissim called her on the phone incessantly. >> he always inquired about the investigation. so i felt he wanted to keep me close for information if he was -- maybe a suspect. >> reporter: and on the day of orlando's funeral who should show up, but nissim himself. that's gotta be pretty bizarre, to have him at the funeral when you think he had your husband killed. >> it was. it was. i immediately told the lead detective in the case. >> reporter: the lead detective came to the funeral also.

>> and she instructed us to act natural, not to let him suspect that we knew that he was the person. >> reporter: and to keep taking nissim's calls. cindy thought she could help police solve the case. but there was a little more involved than a pure murder investigation. the feds were in on it now, said abbe rifkin, the prosecutor assigned to the murder case. >> they were looking at mr. nissim, as they were looking at her husband, as they were looking at other people who were allegedly in the drug business. >> reporter: the drug business? yes. all that missing cash. and orlando's three prior convictions for marijuana and cocaine possession. those things gave the crime the whiff of a classic drug hit. >> my husband unfortunately had a past. before i met him, before i married him. >> reporter: mind you, orlando's crimes were not exactly big time. he pleaded guilty to all those charges and served a few days in

jail. and though nissim also had a record, several assault convictions years earlier, when he was not yet 20, none of them had a thing to do with the drug trade. still, question was, had something happened to sour their partnership? just over three weeks after the murder, the police asked cindy to do more than just keep an eye on nissim. >> i was asked by the lead detective to maintain communication with him so i could work for them, wearing a wire, and help them catch this individual. >> reporter: a potentially dangerous thing to do, of course, wearing a wire, secretly recording conversations. still, cindy said she would do it. and on the advice of the lead investigator, said cindy, she bought a gun for the first time in her life. she also decided to move out of her house. but as for the wire? >> she never wore the wire. >> reporter: no, she did not.

and the reason? it was may 20th, exactly one month after the hit on orlando mesa. cindy was home alone packing to move. and suddenly, an unexpected guest was at her door said cindy. not just any guest, ilan nissim. he practically forced his way in, she said. peppered her with questions about her husband's business. >> he started asking me about my husband's warehouse. and if i had my husband's keys. and i said, "i don't know where he keeps his keys." that's when he became aggressive. and he said that i knew more than ma i was telling him. >> reporter: she watched in terror, she said, as he walked around the house. as he looked outside and saw that her dogs were securely leashed. unable to help her. and then, she said, it got very scary indeed. >> and he grabbed me. that's when he attacked me. i was able to get away from him.

he scratched my neck. he ripped my shirt. he chased me through the house. >> reporter: cindy said she ran to the living room where she kept her newly purchased gun. and nissim, right behind her, tripped on some bags she was packing. >> and when i turn around, he made a move. and i panicked because i thought he was reaching for his gun. and that's when i -- i shot. and i ran out of the house and i called 911. >> somebody just tried to kill me, and i fired. i ran to the streets, hurry up come! >> i need you to try to calm down so i can understand you. >> somebody tried to kill me. >> reporter: had she stopped him? were there others with him? she kept running. >> and she's frantically saying, "oh, they're chasing me, they're chasing me." >> reporter: back at the house, police found nissim on the floor. he was very dead. they finally caught up with cindy a few blocks away, drove her to headquarters.

how did they treat you that day? >> they treated me very well. they were very nice. after my statement, they told me that it was a justifiable self-defense. >> reporter: afterwards, the lead detective dropped cindy at her parent's house. >> and she told my family that i did the police a favor by taking out the trash. >> reporter: the next day, news reports quoted the police as saying nissim was a suspect in orlando's murder and that cindy was justified. shot him in self defense. but now, regardless of that, you had just killed somebody. you'd taken another human life. >> yes. >> reporter: that can't be easy to deal with. >> no, and -- and it felt unreal. it felt unreal. >> reporter: however, as you say, the police told you'd taken out the trash. and did they essentially leave

>> they dropped me off at my house and they -- my family members had nothing to worry >> reporter: you went on rebuilding your life. >> correct. >> reporter: but as they say, don't count your chickens. >> don't judge a book by its cover. was this a story of self-defense or revenge? >> i couldn't believe what i heard. the final countdown! if you're the band europe, you love a final countdown. it's what you do. if you want to save fifteen percent or more on car insurance, you switch to geico. it's what you do. are you tired of hazardous glass made so clear by sfx: slide show windex that you don't even know it's there? sfx: slide show

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>> reporter: cindy carballo's husband had been murdered, her son wounded, and she had just killed the man she believed was responsible. it wasn't an easy load to put in the rear view mirror. but a few months after she killed ilan nissim --it was noah's second birthday. and cindy decided his happiness

so she organized a party. pony rides, a pinata, the cake. cindy, remember, had always been an ambitious person. now that she was the family bread winner, in 2010, 2 years after the murder she and a partner opened a clinic that specialized in managing pain, located in nearby broward county, just north of miami. she hired this man to help get the business going. his name is john friskey. >> i was selling her computers and helping her get set up. >> reporter: pain management clinics were popping up all over south florida just about then. and some of them were suspected of being so-called "pill mills", where unethical doctors got rich writing prescriptions for narcotics like oxycontin. >> in broward county, there was one hundred and some-odd pain clinics, which is believe it or not more than all the mcdonald's. >> reporter: detective rob weir was part of a d.e.a. task force set up to investigate these pill mills.

and while cindy insisted she ran her clinic by the books, it came to the attention of the d.e.a. task force. >> we had received complaints on it. and so we sent somebody in, see what we could do. >> reporter: and guess who the task force sent? john friskey, the computer expert. he also happened to be a d.e.a. informant. >> every time i went in there, i wore a wire from the dea. >> reporter: when you wore the wire, what were you assigned to do? >> my main goal was to get anything that would piece it together and prove it was a pill mill. >> reporter: he talked to cindy a lot. fishing, really, for what might be evidence of medical fraud. then one day, it was just over two years after cindy shot nissim, friskey got a very big surprise. >> made me very uncomfortable. i just wanted to leave. >> reporter: what happened? frisky asked cindy about her family and she launched into an

of ilan nissim. >> so i went through hell and back, you know? >> reporter: it was the story of how her husband was murdered and her son wounded, and how she suspected hehusband's busiss partner, ilan nissim arranged it all. and then she said, when she decided the police were never going to arrest him. >> i was like, i have to do something. i can't let this go. i won't let it go, okay? an eye for an eye. i want his daughter to grow up without a father just like my son. >> reporter: and that's when a completely different story emerged about the day she shot nissim. a far cry from the one she told the police. nissim didn't barge into her house uninvited, she said. she lured him there. >> i knew what was gonna happen, and you know, i was shaking inside, but outside i was calm. >> reporter: she told friskey, she asked nissim to take down some speakers in her bedroom. and then she went to the living room and got her gun.