A New Year's Eve shooting in the small town of Benton Harbor, MI, and police body cam captures the heartbroken cries of Army Sgt. Kemia Hassel as she cradles her dying husband, Army Sgt. Tyrone Hassel III, who was on leave during the Thanksgiving holiday; he died from multiple gunshots. Despite the happy outward appearance of the attractive young military couple, investigators soon uncover a murder plot.

The Amatos were a close-knit, middle-class family with three professional sons. So, it was a shock when Margaret and Chad Amato and their youngest son Cody were found dead, shot execution-style in their suburban Seminole, FL home. Suspicion quickly turned to middle son Grant, a trained nurse, who had quarreled with his family over money he had stolen from them.

When 63-year-old Wisconsin wife and mom Victoria Prokopovitz went missing in 2013, her three grown children were beside themselves with worry. Her husband of 24 years, Jim, seemed oddly unconcerned, telling police she often wandered off and had tried to commit suicide twice. Despite a massive search, Victoria was never found. A private detective was brought in by her daughters; conducting his own investigation, he learned of a secret affair.

25-year-old Army veteran Ashley Biggs, a single mom and pizza delivery driver, was murdered on a late-night delivery for Dominos in New Franklin, OH. Police arrested her former boyfriend Chad Cobb, who had been in a custody battle with Ashley for their daughter. For eight years, Cobb refused to tell police who had helped him lure Ashley to her death until he felt betrayed.

When Brandi Peters and her three children were found murdered in Tallahassee in 2010, prosecutors pointed the finger at her ex-boyfriend, Henry Segura, who owed her more than $20,000 in child support. But as the trial got underway, an imprisoned drug dealer came forward, saying he had ordered the murders from prison.

Popular 21-year-old South Carolina University college senior Samantha Josephson prepared to head off to Drexel Law School with a full scholarship. After a night of celebrating with her friends at the Five Points bar area in Columbia, she got into an Uber and disappeared. Tragically, her body was found 24 hours later, with more than a hundred stab wounds. Police discover that the car she got into was not her Uber.

Popular Dallas dentist Dr. Kendra Hatcher was in a deep romance with fellow dentist Dr. Ricardo Paniagua when she was brutally murdered in the garage of her upscale apartment building in what appeared to be a robbery gone wrong. Police soon uncover a love triangle, a stalker, and a murder-for-hire plot.

When 20-year-old University of Iowa student Mollie Tibbetts went missing during her regular evening jog in Brooklyn, IA, her disappearance was headline news. Police had few clues until a local resident shared his garage surveillance camera, which had captured a brief glimpse of Mollie running down the street and a black car driving by.

13-year-old Dylan wasn't eager to fly to Colorado for the court-ordered long-distance visit with his dad, Mark Redwine, in Durango during November 2012. When Dylan didn't show up for a playdate the next morning, he was reported missing, setting off a manhunt in the rough Colorado wilderness. In a stunning twist, in a national television interview, Dylan’s older brother, Cory, accused Mark of being responsible for his brother’s disappearance, a charge the father vigorously denied.