up next, a home invasion turns to murder. >> just extreme overkill. crime of passion, crime of rage. >> so much violence and no one with a clear motive. >> as best as law enforcement could establish, she had no enemy. >> that is until police discovered a romance gone horribly wrong. >> you believe it will be a lover or someone who wanted her out of the way so they could be the new lover. >> i don't know if a love triangle can go good. but this one went really bad. ♪ >> avis marie banks, cum laude.

>> life couldn't have been better for avis banks, she graduated from college, found a job she loved in a daycare center and met the man she planned to marry. but an unexpected pregnancy changed some of her plans. >> when i learned avis was pregnant, i wasn't thrilled. i know avis asked for forgiveness, that she was going to make it right by marrying him. >> her fiance was keyon pittman, a middle school teacher and basketball coach. >> mr. pittman was excited about the family that they were beginning. they had already picked name out for the child. >> avis and keyon bought a house together in the suburb of jackson, mississippi. but tragedy struck just a few months before the baby was due to be born. when keyon came home from work and found avis lying on the garage floor in a pool of blood,

police were called to the scene. >> law enforcement immediately orders him away from the body. they want to make sure that he is not possibly the perpetrator in the case. >> keyon called us and asked my wife, need to get over here. and we turned the corner, and i saw all the emergency vehicles. and all these police cars. but when i saw that yellow tape i knew what that yellow tape meant. so i knew then you know that avis was gone. >> avis and her unborn child were pronounced dead at the scene. >> it was obvious that she had been shot in the head, in the chest, and possibly in the stomach. we weren't totally sure as to how many shots she had received at that time. it also appeared she had been cut with some type of object. >> it appeared that the killer waited inside the house until avis came home from work and then attacked when she stepped

out of her car. [ gunshots ] the point of entry was the back door where police found two high-quality shoe impressions. >> the prints on the glass door were fairly good prints, good clarity. they were two-dimensional impressions in dirt on the glass door. >> analysts estimated the prints were made from a man's size 8 shoe. it appeared the killer tried to kick the glass in. when that didn't work the killer kicked through the doorjamb. >> we were surprised that the glass didn't shatter. the dead bolt was still engaged. so we knew that that back door was locked when entry was made. >> several rooms in the house had been ransacked. immediately suspicious, police performed a gunshot residue test on keyon's hands. >> we did discover particles of gunshot residue on mr. pittman, mr. pittman very well may have

fired the fatal shots that killed avis banks. >> and keyon appeared to be unconcerned. >> he was laughing. i had to remind him that he had a fiancee and a baby that were dead. and he said at that point, oh, yeah. >> when keyon called his lawyer, his anger was clearly evident. anger not towards the killer. but the police. >> i don't like this at all. these [ bleep ] think i had something to do with it. [ bleep ] i came home. i knew something was up. >> keyon had no criminal record. but he wore size 8 1/2 shoes. consistent with the shoes the killer was wearing when he tried to kick in the back door. and that wasn't all. >> there was blood on the

button-down shirt that he had on, as well as blood on the pants. >> dna tests showed the blood had come from avis. >> maybe he didn't want to settle down and be a father and be a husband. maybe he was trying to get rid of her. ♪ (piano music) fresher dentures, for the best first impression. love loud, live loud, polident. ♪ fresher dentures... ...for those breathless moments. hug loud, live loud, polident. ♪ rheumatoid arthritis like me... and you're talking to a rheumatologist about a biologic, this is humira. this is humira helping to relieve my pain and protect my joints from further damage.

this is humira helping me reach for more. doctors have been prescribing humira for more than 10 years. humira works for many adults. it targets and helps to block a specific source of inflammation that contrubutes to ra symptoms. humira can lower your ability to fight infections, including tuberculosis. serious, sometimes fatal infections and cancers, including lymphoma, have happened, as have blood, liver and nervous system problems, serious allergic reactions, and new or worsening heart failure. before treatment, get tested for tb. tell your doctor if you've been to areas where certain fungal infections are common, and if you've had tb, hepatitis b, are prone to infections, or have flu-like symptoms or sores. don't start humira if you have an infection. talk to your doctor and visit humira.com this is humira at work.

police in jackson, mississippi, were determined to find avis banks' killer. she had been ambushed while getting out of her car returning home from work. avis was five months' pregnant. >> we do take it kind of personal. and we were also tasked with fighting for that 5 month-old child who didn't have a chance to live in the world. >> she was my perfect child. i love all of my kids but they were not like avis. they were not like avis. >> the autopsy showed avis banks had been shot four times with a .38-caliber pistol. she had also been stabbed numerous times. >> there were defacing injuries, whoever was doing this was wanting to injure her physically. injure her appearance. and then with the last and final slash to the throat just extreme

overkill. >> at first, investigators thought the motive was robbery. but that theory was discarded when police realized that despite the killer taking time to open drawers, nothing had been stolen. >> to us, the scene itself appeared to be staged. we didn't find anything of value that was missing from the house. >> when police interviewed avis' fiance, keyon pittman, they found blood on his shirt. dna tests showed the blood was avis'. and the neighbor told an interesting tale. that keyon always parked his car at the front of the house and entered through the front door. but the night of the murder was different. >> this particular day he raised the garage door when he got home. we believe that he knew that avis was laying in the garage. >> and the background check revealed keyon was a player.

>> he had a lot of girls he was playing at the time. >> one of the women was 30-year-old brenda martin, the mother of one of the boys on the basketball team keyon coached. >> ms. martin and mr. pittman were in the early stages of a relationship. that was in the form of flirting, telephone calls, text messages, things of that nature. >> brenda martin had no desire the talk to police. >> brenda didn't want to have anything to do with this whole situation because she was married. she was married with children. >> brenda denied any involvement in avis' murder. and she had an alibi for the time of the crime. >> we didn't find anything with her that would put her at the scene. phone records or anything. >> brenda wasn't keyon's only love interest. another was carla hughes, the 25-year-old cheerleading coach who worked at the same school

with keyon. apparently they had been less than discreet with their relationship. >> they had been seen kissing several times in the restaurant. so i knew her to be at least more than a friend. >> carla hughes was the one that he was the most involved with. that he had, i guess, the most serious relationship and that he was seeing basically on a daily basis. >> carla hughes was a former beauty pageant contestant and a single mother of a 3-year-old son. when questioned by police, she adamantly denied the affair. >> he's not a boyfriend. he's just a friend. who's a guy. none of this was sexual with him. no, no, nothing. >> i can understand why carla hughes was lying initially. she didn't want to be in the mix of someone had just been murdered. >> people may have saw us being affectionate towards each other. but at the most they may have

just saw a little kissing. but as far as it like being a full-out blown romantic love affair, that's not what it was. it really wasn't. >> carla denied any involvement in avis banks' murder. and was an unlikely suspect. but she didn't have an alibi for the time of the murder. investigators believe the murder took place shortly after avis returned home from work. >> avis banks left the daycare about 5:15 and went straight home. she got home about 5:45. no evidence shows that she stopped anywhere in between. and the murder occurred somewhere between 5:45 and 6:00 that night. >> witnesses said keyon was at school running basketball practice at that time. and his cell phone records confirmed he was at the school between 5:30 and 6:00 p.m. >> we had the witness

statements. but this again was independent verification through a separate source that he was, in fact, at basketball practice. and he was miles away from the crime scene at the time we believe the crime occurred. >> but carla's cell phone records showed something else. >> those records show that a little after 5:30 and then again at roughly 6:05, that ms. hughes was in that area. that she was in the area at the same time that the murder occurred. >> and who was she calling? >> hello? >> keyon pittman.

it's time to bid farewell... to this booking incredible island resort. and it's incredible island staff. (father:) i can't imagine life without them. this is not goodbye. ♪ yes, it is. ♪ (father:) no, it isn't... ♪ ok, i guess it's not. ♪ you got it booking right. booking.com booking.yeah wow. sweet new subaru, huh myep.? you're selling the mitchmobile!? man, we had a lot of good times in this baby.

what's your dad want for it? ..like a hundred and fifty grand, two hundred if they want that tape deck. you're not going to tell your dad about the time my hamster had babies in the backseat, are you?! that's just normal wear and tear, dude. (vo) subaru has the highest resale value of any brand... ...according to kelley blue book ...and mitch. love. it's what makes a subaru, a subaru. vo: in the nation, we know how it feels when you aren't treated like a priority. we'll take care of it. we put members first. join the nation. thank you. ♪ nationwide is on your side

my here at c.k. mondavi.on, the vice president of operations to make this fine wine it takes a lot of energy. pg&e is the energy expert. we reached out to pg&e to become more efficient. my job is basically to help them achieve their goals around sustainability and really to keep their overhead low. solar and energy efficiency are all core values of pg&e.

they've given us the tools that we need to become more efficient and bottom line save more money. together, we're building a better california. police had two suspects in the murder of avis banks. her fiance, keyon pittman had an alibi for the time of the murder but blood on his shirt and gunpowder residue on his hands raised concerns. >> we believe that the gunshot residue that was discovered on mr. pittman's hands was not placed there because he fired a weapon. we believe that that was transfer from him handling the body of avis banks. >> just as the blood on his shirt.

>> it was determined based on those visual examinations that the blood stains on him was from a touch transfer versus him actually being there and having evidence spattered on him at the time of the crime. [ gunshot ] >> if he committed the murder there probably would have been some blowback or splatter on his clothing. the lab did not find any. we had to realize that keyon was not around. keyon probably didn't do this. and now we had to start looking at his other lover, that being carla hughes. >> although carla initially denied having a relationship with keyon, during her second interview with police, she changed her story. >> she did confess that she had lied to me and that they were sleeping together. >> six days into the investigation police got a call from one of carla's cousins. >> he tells investigators that he has in his possession a firearm that they believe was

used in the death of avis banks. >> this cousin, patrick nash, said carla asked to borrow his gun, a .38-caliber revolver for protection. >> she tells patrick that there has been recent break-ins there at her house, that she is concerned for her safety. >> patrick said that three days before the murder, he gave carla his gun loaded with five bullets. he also gave her a hunting knife. three days after the murder she returned the gun but not the knife. and the chamber of the gun was empty. >> patrick asked carla, hey, what happened to the bullets in it? she told him, i went target-practicing. >> the gun was given to ballistic experts and the bullets were test fire sod that they could be compared to the

bullets recovered from avis' body. >> the projectile did match from the test firings which told me that the weapon was the weapon that killed avis banks. >> but this did not necessarily put the gun in carla's hand. i was a so investigators looked again at the shoe impressions from the crime scene. they assumed the impression was made by a man's shoe which would have been a size 8. but it also could have been a woman's shoe, a size 10. with a warrant, investigators searched carla's apartment. >> we went through the master bedroom closet. and carla had probably upwards of 100 pairs of shoes in the closet. that was a needle in the hay stack that we really weren't sure was going to be out there. >> one pair looked promising. >> we looked at the picture we brought with us from the crime seen, and it appears to be a perfect match, the tread pattern. >> i was relatively certain looking at the photographs that they were made by these same shoes.

>> but visually, investigators saw no traces of blood on the shoe, which was disappointing. >> we then decide to submit those shoes to a second laboratory. the examiner places the shoes under the microscope. >> this time, they found several microscopic stains that appeared to be blood. and this time, dna testing confirmed what investigators already suspected. >> those shoes do, in fact, contain dna and were later to match the dna of avis banks. it puts her there in the presence of ms. banks at the time of her death. >> the only thing police needed to figure out was whether keyon pittman was involved. are you up for whatever? don't answer. grab a bud light and show it. try new things, make new friends, explore new places. find the fun around every corner.

better yet, be the fun. laugh. dance. spin. jump! make a single weekend last a lifetime. and keep it going with a crisp, refreshing bud light. the perfect beer for whatever happens. ♪ can't tell them apart,e try as you might. ♪ ♪ but a wise man once said that the secret to life ♪ ♪ is to find one that don't look the same. ♪ ♪ find one that don't look the same. ♪ experience the distinct audi q5 at your local dealer today. hey, what are you doing? you said you were going to find out about plenti, the new rewards program. i did. in fact, i'm earning plenti points right now. but you're not doing anything right now. lily? he's right. sign up, and you could earn plenti points just for being a wireless customer.

in the meantime, i just kick back and watch the points roll in. where did you get those noodles? at&t cafeteria. you mean the break room... at&t - the only wireless carrier to be a part of plenti, now when you add a new phone line to your wireless plan you get 5,000 plenti points to use in lots of places. ♪ hp instant ink can save you up to 50% on ink delivered to your door, so print all you want and never run out. plans start at $2.99 a month. right now, buy an eligible printer and get three months of free ink with hp instant ink. available at participating retailers. the most affordable way to print. hp instant ink. gummy multivitaminrst ever from centrum. a complete, and tasty new way to support... your energy... immunity... and metabolism like never before.

centrum multigummies. see gummies in a whole new light. bold isn't just a word. it's how we approach everything. hurry in for our new wood-fire grilled flat iron steak. or victoria's filet portabella. starting at just $13.99 for a limited time. we let the bold flavors of the outback. speak for themselves. outback steakhouse. done right.

carla hughes had never broken the law and had no violence in her past. no one thought she was capable of murder. >> she led bible studies. she led exercise classes. she was a leader. and she is also a very pretty lady, somebody who you would never suspect to do something wrong. >> but three years before the murder of avis banks, carla suffered a devastating emotional blow.

she was two month's pregnant and about to be married to the baby's father. the day before the wedding, he called it off. >> carla hughes was a doormat for men, her cousin did tell me that whenever she fall for a guy, she fall hard and most guys just take advantage of her. >> investigators believed carla saw keyon pittman as the answer to her problems. >> carla wanted to be where avis was. she wanted to be the one who was getting married, who the man truly loved her and they were going to have a family together. but that wasn't the case. >> prosecutors believe carla hughes wanted to eliminate the only person standing between her and keyon. avis banks. so she borrowed her cousin's gun and knife. and went to the home avis and keyon shared. she attempted to break into

avis' home late in the afternoon by kicking in the glass on the back door, leaving remarkably clear shoe impressions. when this didn't work, she kicked in the doorjamb. once inside, she pulled out drawers to make it look like a robbery gone wrong. then, waited for avis to return from work. cell phone records show carla placed her first call to keyon before the murder, most likely as she was staging the scene. no one knows what was discussed during that call. when carla heard the garage door open and avis' car pull in she sprung into action. [ gunshots ] carla fired three shots. the fourth shot from close range. close enough to spatter the tiny speck of blood found on her shoe. carla then used the hunting

knife to stab avis repeatedly and cut her throat. after the murder, carla got rid of the knife and her bloody clothes. and placed a second call to keyon shortly after 6:00 p.m., again, no one knows what was discussed. >> i'm just leaving practice now. but you know, i can't really talk. >> what shocked me the most, this woman has a child. how could a mother do that to another woman, and knew she was expecting? >> as for keyon pittman, he claims he played no part in planning or instigating the murder. and carla never implicated him in the crime. some speculate he learned about the murders after they happened, but, before he found avis' body. >> we felt like there was probably some conversation that night prior to keyon going home

that led keyon to know that something had happened and that carla probably told him, you said we couldn't be together. we can be now. i've taken care of what was in our way. that is what threw up the red flag for keyon. >> did you inflict those wounds on avis banks? >> no, sir. >> did you kill her? >> no, sir. >> did you kill your unborn child? >> no, sir. >> do you know who did? >> no, sir. >> we, the jury, find the defendant, carla hughes, guilty of capital murder. >> carla hughes was sentenced to life in prison without the possibility of parole. >> it is a love triangle gone bad. i don't know if a love triangle can go good. but this one went really bad. >> carla hughes probably would have been a suspect anyway just based off of the relationship she had with keyon, i don't know if we would have been able to tie her to the crime if we didn't have the gun. >> we built our case on the ballistics. we built our case on the shoe print impressions. we built our case on the dna

evidence. so really without that all we would have had would have been a motive. and there would have been nothing that we could have charged and ever got a conviction on in this case. >> up next, a teenage girl goes missing. >> this child had walked into the darkness and disappeared. >> was tara munsey the victim of foul play or did she run off to be with a friend? >> it was horrible. people just didn't know what to make of it. >> for weeks, there were many questions but no answers. >> just not right. >> until police find evidence of an encounter gone wrong. >> she would have put up a tremendous fight. >> this is good science, this is absolute good stuff. ♪ >> teenage love affairs are