Family and friends gathered Saturday in North Carolina to say goodbye to a pregnant Frederick woman and her two preschool-age daughters who were killed last month. Shanann Watts, 34, was found in a shallow grave and daughters Bella, 4, and Celeste, 3, were found in an oil tank days after they were reported missing. Police arrested Shanann's husband Chris, after he had been interviewed by several local news stations about his family's disappearance. He now faces nine felony counts, including five counts of first-degree murder and one count of unlawful termination of pregnancy. Tonight, we uncover new information about what Chris is doing behind bars-and we reveal actual video of the baby monitor in the Watts home. Is his story about seeing his wife strangle their kids through the baby monitor even plausible? And what clues do the caskets at their funeral reveal about how they may have died?

A motive in the murder case has not been confirmed as allegations of Chris' infidelity draw greater scrutiny. Those who know the Watts family have described a seemingly happy union possibly beset by mounting tension. "It's beyond belief, really," friend told PEOPLE. "And it makes you wonder about other people you know. If this couple who seemed so perfect was like this, what are the other couples like?"

Crime and Justice producers reaches out to a former lover of Chris Watts, a father who is accused of murdering his wife and two daughters.

A Denver criminologist has claimed that the father accused of murdering his pregnant wife and their two children did so because he wanted to start a new life with his lover.

Shocking reason behind massacre revealed?

Cops: Dad killed family, then went on TV to say they're missing

A Colorado man is facing three counts of murder and three counts of tampering with physical evidence after his pregnant wife and two young daughters disappeared this week, police say. 33-year-old Chris Watts was taken into custody Wednesday night and is being held in the Weld County jail, north of Denver. Shanann Watts, who was 15-weeks pregnant, was reported missing on Monday along with her two daughters, Bella, 3, and Celeste, 4. Colorado officials confirmed their deaths in a press conference today, stating they are "quite certain" Shanann's body has been found, and "we have strong reason to believe we know where the body of the children are, and recovery efforts are in process." According to police, Shanann's body was found on property where her husband worked.

A friend of Shayna Hubers took the stand yesterday to tell the court about foreboding text messages from the weeks before Hubers allegedly shot her boyfriend six times and killed him. One of the texts read, "When I go to the shooting range with Ryan tonight I want to turn around, shoot and kill him and play like it's an accident." Prosecutors are painting Hubers as 'jealous, calculated and manipulative' but the suspect is claiming self-defense. Hubers, who in 2015 was found guilty of murdering 29-year-old Ryan Poston, was granted a retrial after her attorney discovered a juror in the first trial had a prior felony conviction. Now, her defense team is arguing she was the victim of long-term abuse that forced her to take drastic measures for the sake of her own safety. Will the jury buy her story?

Newly-released body cam video shows the moment officers shot a Florida man after he stole one of their tasers and pointed it at them. Just before, the Miami-Dade police officers rescued 29-year-old Jahmal Parker from crashing his car into the lake. In the video, Parker can be seen running off with the taser and ignoring multiple officers' orders. That's when they shot him in the leg. Since then, Parker has been charged with six felonies, one misdemeanor and two driving-related infractions. His next hearing is scheduled for August 23.

Accused boyfriend killer Shayna Hubers appears to be shifting defense tactics, now claiming she shot her lover six times in self-defense when he became angry over her inability to orgasm. Hubers is on trial for killing attorney Ryan Poston, whom she was dating when he was murdered in October 2012. She was convicted in his death but now has a second shot at freedom after it was discovered that a juror during the original trial failed to report a felony conviction. The defense claims Hubers saw Poston moving his arm toward a gun on a table, so Hubers picked it up first and started shooting. She finished the job when she saw him dying and didn't want him to further suffer, according to her attorney.

A Phoenix father is jail tonight after allegedly beating a panhandler to death at a convenience store. 40-year-old Melvin Harris is being held on suspicion of second-degree murder following the death of Leon Armstrong. According to police, Harris says Armstrong tried to barge into his daughter's bathroom stall by shaking the door. Court documents say Harris urged a security guard to 'take care of the situation or he would do it himself.' The father saw Armstrong again as he was leaving and instead of driving away, he decided to confront him with punches and kicks. Armstrong was taken to a hospital for treatment but died from his injuries five days later.

Three weeks ago tonight, 20-year-old Mollie Tibbetts vanished without a trace. Police know the Iowa college student was dog-sitting at her boyfriend's house the night she disappeared and that she went out for an evening jog. But what happened after she got back and where she might be remains a mystery. Now, investigators are refocusing their efforts on five areas of interest based on tips they have received.

A hero police officer saved the life of a domestic violence victim outside a Las Vegas apartment complex where the woman was viciously stabbed by her boyfriend. The Metropolitan Police Department responded to a call about a stabbing from a female neighbor who witnessed the horrific incident at The Virginia Apartments last Wednesday night. Frantic 911 audio hears the neighbor as she explained how the attack by 30-year-old William Fuller went down. Body cam shows Sgt. Daniella Cino at the time she arrived to the scene moments later. Fuller stood over his unidentified girlfriend's body, sporting a white T-shirt splattered in her blood.

A Utah man flew a small plane into his own house early Monday just hours after he had been arrested for assaulting his wife in a nearby canyon where the couple went to talk over their problems, authorities said. Duane Youd, 47, was killed in the crash after he piloted the Cessna Citation Jet 525 from a nearby airport. His estranged wife, Sandy, and her son who were in the home got out and survived despite the front part the two-story house being engulfed in flames, Payson police Sgt Noemi Sandoval said. Investigators believe the plane belonged to Youd's employer and that he intentionally flew into his own house.

Scott Peterson is not guilty of murdering his pregnant wife and is only guilty of adultery, according to his sister-in-law. Peterson is currently sitting on death row after being found guilty of murdering wife Laci and their unborn son Conner in 2004 while he was having an affair with a woman named Amber Frey. But Janey Peterson believes that jurors allowed news of the affair, and Scott's past liaisons with multiple other women, to cloud their judgement. While she believes Scott is guilty of adultery she also argues that there was never enough evidence to convict him of murder. 'We don't have justice yet; we're not there,' she told the Fresno Bee. 'We can't be content thinking we know what happened to Laci and Conner; we don't.'

In Pennsylvania, dozens of drivers passed by a simple traffic stop that would turn into a full-on shootout, though the people driving by probably didn't think much of it because at first, everything was under control. Two state troopers pulled over a young man for speeding and just as they were about to send him on his way, they noticed signs of drug use. That's when they busted out the handcuffs and the driver busted out of their grip. 22-year-old Daniel Clary opened fire and left those officers for dead so he could drive himself to the hospital where he was treated for multiple gunshot wounds and eventually, put in handcuffs for good. During the dramatic shootout caught on camera, Corporal Seth Kelly was shot in the neck, should and thigh. He managed to apply his own tourniquet to his bleeding leg before he was rushed to the hospital. That's where he was declared dead for ten minutes before spending 12 days in a coma, and finally waking up. Corporal Kelly reportedly has no memory of the traffic stop, though he wants to go back to work with his partner.

A School Resource Officer in Texas gets to keep his job after handling a special needs student who was reportedly poking and pinching his classmates, eventually kicking and spitting on the school cop. Not to mention, slamming his own head into the ground. Officer Eric Coulston was called to a classroom at Alexander Elementary School, in the hope of calming him down. But when the 10-year-old autistic student climbed into a cubby and Officer Coulston offered to assist, the child's parents say he did just the opposite. In fact, they say he abused him. That young boy's parents say their son is covered with scratches and bruises and that he is suffering emotionally after the experience. But the school district is backing Officer Coulston, saying he made the right call because the student was a "detriment to his own safety."

Tonight, we're tracking the search for Mollie Tibbetts-the 20-year-old Iowa college student and camp counselor who vanished while she was dog-sitting for her boyfriend in a town of just fifteen hundred people. Mollie was last spotted by a local while she was on her evening run, but that was nearly a month ago. Police say they've looked into her Fitbit data as well as her social media. They say they've searched every property in the region talking to speak with Wayne Cheney, the local pig farmer who says he was questioned through he reportedly refused to take a polygraph test at the time. But apparently, Cheney had a change of heart because tonight we know that he took that lie detector test. The question is what investigators learned from it and whether it could help lead to Mollie.

Louisiana authorities have more questions than answers as they continue to search for 32-year-old Sadie Thibodeaux, who disappeared while sailing on Sunday, PEOPLE confirms. On Tuesday, while sweeping Lake Pontchartrain, where Thibodeaux went missing, a woman's body was found.

A judge ruled one of the brothers convicted of murdering five members of his Broken Arrow family will serve his five life sentences consecutively. Michael Bever was convicted of killing his parents and three siblings and trying to kill another sibling.

An Indiana father is accused of allowing his 8-year-old son to get into a stash of methamphetamine and ingesting some, and then refusing to call 911 as the young boy lay dying - screaming and talking to people who were not there, witnesses told police.

An Iowa man said police officers searched his home in connection to the case of Mollie Tibbetts, the University of Iowa student who vanished last month after going for an evening jog. In an exclusive interview with "Good Morning America" on Thursday, Devin Riley said he contacted the Powoshiek County Sheriff's Office in Central Iowa after Tibbetts was reported missing, telling officers that he may have been "the last person to see her."