But first the nightline 5. Come on and do it come on lets go got to get moving come on lets go theyll always be our babies so there will be things to keep us up. Tonight johnsons can help with a bedtime routine, clinically proven to help them fall asleep faster and stay asleep longer. Tonight we sleep. Number one in just 60 seconds. Good evening. Thank you for joining us. It was a new Years Eve Party that ended in tragedy and raised a troubling question. Why would a young mother of three take her own life . Now her husband is on trial for her murder. What the neighbors say they heard that night, will it change the case . Heres abcs clay son sandell. Reporter that night seemed to hold no sign of the terrible act that was about to take place. Two, one, happy new year reporter after all, a happy couple celebrating new years eve. Dancing away the last hours of 2011 was what friends of tom and ashley fallas would later recall. But the sounds of laughter turning to this. My wife just shot herself in the head, please help me, please help me reporter shortly after midnight tom fallas calls 911. Ashley, no ashley, no ashley, no listen to me hey reporter ashley, a mother of three, is mortally wounded in her bedroom from a single gunshot wound to her head. Her three children still inside the home. No sir stay here, come here, you stay here you are not leaving me reporter at the time, five Law Enforcement agencies rule it a suicide. But today, four years later, the same men you hear apparently helping his wife cling to life youre not leaving me dont leave me stay right here, look at me sir look at me you can hear me . I know you can hear me. Reporter hes now on trial for her murder. The prosecution painting a damning picture of an enraged deputy corrections officer out of control. I just told you why do you that is not from you you know what yeah, itress are when you shave your chest . You sit there and i do this all freaking day youre just trying to make more scratches right now. Reporter in the interrogation video from that night obtained from abc news, early clues according to the prosecution that fallas was hiding something. The scratch mark thats on your chest, what is that . You have a long red oh, probably because ive been doing this all frickin night. Reporter signs of a possible altercation. I just had to ask she she hit me. It was a playful hit that she hit me earlier. And it was in front of people. It was just like a boom. Reporter questions of whether ashley could have shot herself. Her head is clear in the back. Shed have to go like this, tom, look at me. Shed have to go like this, clear back here. It isnt where she could easily reach. I didnt oh my gosh. Reporter and earwitness accounts that seem to hint at a struggle. There was somebody awake and they actually heard your argument and your conversation between you and your wife. Really, what conversation was that . Shes telling you to get off of me, get off of me. And youre just saying, dont leave me, dont leave me. Oh explain that. Reporter fallas was adamant. I didnt shoot my wife reporter but ashleys mother, jenna fox, thinks he did, pointing to tom fallas behavior. The end of the night i think his behavior towards her was very threatening and very volatile and very scary. Reporter in fact, ashley fallas family has wondered if Law Enforcement purposely omitted information from their reports in order to protect tom fallas, one of their own. Here you have the victims family essentially saying the original police department, who was investigating this, wasnt investigating it properly. Because maybe he was a fellow Law Enforcement official. Reporter evans police have publicly 10 need any wrongdoing and say there was never a coverup. But this week prosecutors put two eyewitnesss on the stand who said theyd heard fallas confess to the crime. Former sheriffs deputy chris graves. And at that point you said, thats when you heard him screaming something what did you hear . I heard him screaming, i cant believe i shot her, i cant believe shes dead. When you say screaming, how loud are we talking . Loud. Reporter nextdoor neighbor nick glover, just 15 at the time. What i heard him saying, oh my god, what have i done . Reporter testifying he overheard fallas confessing to fallas parents. He proceeded to say, i shot my wife. How certain are you or are you not that the voice youre hearing is tom fallas voice that youre seeing standing in that quadrant of your driveway . Im 100 . You cant hear Something Like that and forget about it. I mean, thats going to be embedded in your mind for years to come. Reporter it was damning testimony. But even before the defense started presenting its case was reasonable doubt starting to rear its head . That confession glover said he overheard fallas make to his parents, they say it never happened. At that point in time, did tom ever make a statement to you that he shot ashley . Not at that time, not at any time. Reporter the defense poked holes in former deputy graves account, pointing out that for years he never told anyone of the alleged confession and had lost his job for lying. Talk about that for a minute. You said that you were employed at the Sheriffs Office until april or may of 2015. Why is it youre no longer employed there . I was fired. Why were you fired . For this case. What specifically, with respect to this case . I was terminated for lack of candor and honesty. And you can see the entry into the actual reporter and today bombshell testimony from a prosecution expert. So we know the position of the gun reporter remember that interrogation where police implied that toms wife had been shot in the back of the head . Im telling you that the wound is back here, though. I didnt pull the trigger reporter in daylong testimony the states own crime scene investigator dan gillham testified that was not the case. The temple, the entry wound right here, the hairline. You can see the red dot over here on the back side of the head. Reporter repeatedly refuting the idea that tom could have shot ashley. Mr. Fallas was holding the gun instead of miss nielsen in this angle and direction, first of all, is that an unnatural position . For another person to be holding the gun in that manner . It is for me. Reporter and what about gunshot recess due, gsr, typically found on the hand of the person who fired the gun . Okay, wheres the gsr on my hands . Were going to do them. Were going to find that out. Okay, find it out. You know what . I would like to know where the gsr is on my hands. You better be testing her hands too. You guys are sitting here frickin trying to find something, this is ridiculous. No, its talking to everybody, and you know that we have to do a complete, thorough investigation. So it isnt any milking. If you had any knowledge of it you would know. Its undisputed that the bullet went from right to left. Reporter the defense in opening remarks promising a surprising turnabout. Ashley fallas had gsr on body of h both of her hands. Tom fallas didnt have any gsr on his hands. Reporter with the prosecution painting tom fallas as an angry man, out of control, a contrasting picture emerged this week of his wife. Bottles and bottles of her antidepress ant medication in the bedroom. And previous signs of depression. Ashley said on july 24th, 2011, dear tom, im sorry with all that i have caused. Im not happy about it. Im sorry for your pain but i can no longer go on living this life. The prosecution does not have an easy case here. Because they have this enormous legal burden of proof beyond a reasonable doubt. So if these jurors believe he might have confessed, he probably confessed, but theyre not sure about it, and thats the strongest piece of evidence in the case . Then theyll still probably be acquittal. Reporter the case with its wildly dwernling theories of the tragic night ashley fallas met her end is scheduled to go to the jury the week after next. For nightline, im Clayton Sandell in denver, colorado. Up next, dont fall prey to the charming utility guy. He could be out to rob you. But first, the former beauty queen turned alleged drug mule. Shes accused of approaching Airport Security with what ended up being nearly 70 pounds of cocaine in her bag. A story so bizarre it plays like a scene from a movie. There she is, marcia gay reynolds, jet blue Flight Attendant, seen on surveillance video, dressed in street clothes and using her airline i. D. Bag to get through the known crew member security checkpoint, shes randomly selected for a secondary search. Reynolds, a former track runner, kicks off her heels and bolts. Police say leaving drugfilled bags behind. Running down the up escalator and out the terminal. But the story doesnt end there. On saturday she flew to new york as a Flight Attendant on a jet blue flight and was on the loose for five days before turning herself in yesterday afternoon. Today reynolds bail was revoked and tonight she remains in custody. She may not have been fully aware what was in the bags. Reporter shes facing charges of possession with intent to distribute. Officials say theyre now on the lookout for an alleged coconspirator. Assist systems. It recognizes pedestrians and alerts you. Warns you about incoming crosstraffic. Cameras and radar detect dangers you dont. And it can even stop by itself. So in this crash test, one things missing a crash. The 2016 eclass. Now receive up to a 3,000 spring bonus on the e350 sport sedan. So come try the largest variety of lobster dishes of the year, like lobster lovers dream or new dueling lobster tails. Its a party on every plate, and youre invited. So come in while it lasts. One. Is all it takes. To turn the tables. Crest 3d white toothpaste. Removes 5 times more stains. Than the red box. For a smile like that, crest 3d white. Is the way to whiten. E trade is all about seizing opportunity. And id like to. Cut. So im gonna take this opportunity to direct. Thank you, well call you. Evening, film noir, smoke, atmosphere. Bob. Youre a young farmhand and e trade is your cow. Milk it. E trade is all about seizing opportunity. Trust number one doctor recommended dulcolax constipated . Use dulcolax tablets for gentle overnight relief suppositories for relief in minutes and stool softeners for comfortable relief of hard stools. Dulcolax, designed for dependable relief its a suburban crime wave that starts with a friendly knock on your door. Impersonators posing as utility workers looking for more than a meter reading. Uncovering the unexpected and what you need to know to be safe in your own home. Heres abcs geo benitez. Reporter police say this man is not who he says he is. Impersonating an electric worker just last month, he threatens to turn off this womans power unless she coughs up cash for a supposed overdue bill. I said, could i have your i. D. . And he said no. Reporter our affiliate wpbftv capturing the encounter. Police later arresting him charged with robbery, battery, fraud, and is awaiting trial. This just one example of an alarming criminal threat, impersonators disguising themselves as utility workers and talking their way into homes. Like this duo in queens, new york. Police say they made off with 70,000. There was a person in my house, he pulled a gun on me. Reporter three weeks ago in michigan, a frightened homeowner held at gunpoint by another alleged imposter. No arrests have been made. Hes like, we had a gas leak in the neighborhood. He said that he was from the gas company. These guys are very good. Theyre very articulate. Reporter terry mayens at pennsylvania American Water is one of the leading authorities battling the issue. These guys are good, they hit an area then theyre gone. Reporter to find out how easily it can be done, im going undercover. Disguised as a Water Company worker. Equipped with a fluorescent vest, hard hat, clipboard and walkietalkie. All purchased online for about 60. Lets go. Reporter my team dropping me in summit, new jersey. Were going to knock on these doors. And see what happens. See if these people let us in when we tell them were with the Water Company. And obviously were not. Reporter our cameras, producers, and members of the Summit Police department watching from the street, out of sight. Certainly looks official. Here we go. Hi, how are you . Were checking water pressure around town, do you mindfy check your faucet in the kitchen . Officer Matt Tarantino tracking every move. Shes talking through the door, thats great, thats good. Shes talking to him through the door. She didnt recognize him. You can see there shes holding the door wide open for him. So immediate access into the residence. Reporter to our surprise mind if i check your faucet . Come on. Reporter within seconds of meeting a total stranger, six of the seven homeowners who answer the door invite me inside. These people think that im taking official notes here. But im just doodling. Reporter i immediately come clean. Before i come in i should tell you, my name is geo benitez, im with abc news. Were with abc news. We have cameras here. Why were you so willing to let us in . I was looking for a badge. Do you want to come in . What let your guard down . I saw the cap and the clipboard and i thought you were authentic. Reporter pat didnt think twice before letting me into her home. No one ever comes in here to test the water. Its always from the street, i think. Does that raise any red flags for you . Not today it didnt. Unfortunately. If i saw someone was threatening me, then i probably would have yelled, screamed, i would have went out through the side door. You never think its going to happen to you. And look, it did happen to me, unfortunate. Reporter in the end, only one person asked for i. D. Mindfy which can your kitchen faucet . Show me some i. D. . You asked the right question. You are the first one to actually ask for i. D. There is no logo anywhere. Not even on the hat. There was clearly no truck with a logo outside. So they had nothing. They really had nothing. You had on vest on, you looked official. A couple of people said, i let you in because you looked the part. Thats something we want to encourage people to not take at face value what they see. This is our water tanker we take out in case theres a main break somewhere. This is where the let me jit utility workers are working . Exactly. Reporter we write obring ou results to terry and his team. Let him right in. I was looking for a badge. Does it surprise you most of these homes all said, yeah, come on in . It doesnt, frankly. It doesnt. People have a natural trust. And these imposters play off that trust. Reporter he shows us a variety of official vehicles. And that company logo he says you always need to look out for. What are the things you look for when a utility worker is coming to your door . Theyll have a company logo on their clothing. Also, there is a vehicle outside . Make sure its a Branded Company vehicle. Is it really common for a utility worker to even go on legitimate business into the house for anything . Thats the thing. Its extremely rare for a utility worker to show up unannounced for no reason. Reporter to keep your home secure, police say know the names of all your utility companies. Ask to see a photo i. D. With a company logo. And check for checks marked with that company emblem. Oftentimes its what you dont see that you have to be concerned about. You dont know the capabilities of the person entering your home. If they have a weapon you have no idea, exactly. Reporter keep all doors locked, including screen and storm doors. You can open your interior door to communicate but keep that will screen door locked maintains that physical barrier. Reporter when in doubt call the Utility Company or the police. Theyre on your property. You want to make sure the business theyre conducting is legitimate. I appreciate it, guys. Teaching me a lesson. High five for doing the right thing. Nice. Reporter for nightline, im geo benitez in summit, new jersey. Up next, rock n roll fans in cuba finally getting satisfaction. Alriwe could do tacos. Hink boys . We could do some thai. Ooo. How bout sushi, eh . dog yawns no, were not having barbecue. Again. dog groans why . Because youre on four legs, and im on two. And im driving. Thats why. dog whines sushi it is. Lease a 2016 Lincoln Navigator for 599 a month only at your lincoln dealer. Thats why i run on quickbooks. Details. I use the payments app to accept credit cards. And everything autosyncs. Those sales prove my sustainable designs are better for the environment and my bottom line. Thats how i own it. Finally tonight, the british invasion has arrived in cuba. Rolling stones capping off an historic week. Ladies and gentlemen the Rolling Stones scram reporter tonight cuban fans of the iconic rock band getting exactly what they need. Satisfaction reporter the rolling landscape echoing to the music of the Rolling Stones. And i like it reporter the concert three days after president obamas historic visit where the commander in chief declared an end to the last of the cold war in the americas. In a statement before their arrival the band said, we have performed in many special places during our long career but this show in havana is going to be a landmark event for us and we hope for all our friends in cuba too. After this week of real worry and angry words both here at home and abroad, muse pick the stones reminded us of the words of danish writer Hans Christian andersen. Where words fail, music speaks. Thank you for watching. Tune into gma in the