S2/EP5 Gwinnett County District Attorney Danny Porter reflects on the case of Bart Corbin, who pleaded guilty to murdering both his former girlfriend, Dolly Hearn, and his wife, Jennifer Corbin. Bart staged both of their deaths to look like suicides, but a witness came forward in Jennifer's case to testify that he had given Bart the gun that killed her a week before the murder.

When a father, husband and co-worker is found dead, detectives search for a motive in the seemingly senseless slaying. Is it a case of mistaken identity, a random robbery gone wrong, or did secret desires cause a killer to strike in the name of God?

S2/EP5 Former WRDW reporter-anchor Domonique Benn discusses the striking similarities between the deaths of Dolly Hearn and Jennifer Corbin. Hearn and Corbin had both supposedly died by suicide, but Hearn's former boyfriend and Corbin's husband, Bart Corbin, was later charged in connection with their murders. In 2006, Bart pleaded guilty to killing both Hearn and Jennifer.

Investigators chase down leads in the search of Robert Limon's killer. The 37-year-old Burlington Northern Santa Fe Railway employee had been fatally shot at a Tehachapi, California yard on Aug. 17, 2014.

S2/EP5 Gwinnett County District Attorney Danny Porter discusses investigating the death of Jennifer Corbin, who was murdered by her husband, Bart Corbin. Jennifer's family told investigators she had been involved in an online relationship and gave them the contact information for "Chris." The courtship escalated quickly, and "Chris" later revealed that she was actually a woman.

Dental student Dolly Hearn rejects her boyfriend’s marriage proposal, and shortly after, a mysterious death stuns everyone. When another victim, Jennifer Barber, dies in similar circumstances 14 years later, investigators must determine if both cases are fatally intertwined.

After six months of dating, Bart Corbin proposed to his girlfriend, Jennifer Barber, and the two married in a lavish ceremony on Sept. 1, 1996. The couple was ecstatic and settled in Buford, Georgia, later welcoming two sons. Their happily ever after, however, did not last long.

S2/EP4 When ambitious model Cynthia Knox moved in with boyfriend Harold "Skeeter" Lyerla at his mother's house, the motocross champ's friends and family noticed she became more demanding and controlling. The couple's relationship slowly deteriorated.

S2/EP4 Friend reflect on their time with 29-year-old motocross champ Harold "Skeeter" Lyerla, who was stabbed to death in his Lompoc, California home in November 1988. Landscaper Victor Perea was convicted in May 1989 of Lyerla's slaying and sentenced to 56 years behind bars.

S2/EP4 Family remember slain motocross champion Harold "Skeeter" Lyerla, who was killed in November 1988 at his Lompoc, California home. The 29-year-old was stabbed to death by landscaper Victor Perea, who convicted in May 1989 and sentenced to 56 years behind bars.

Members of law enforcement discuss the investigation of motocross champ Harold "Skeeter" Lyerla, who was murdered at his home on Nov. 23, 1988. Before his slaying, Lyerla was involved in a dramatic love triangle with this wife, ambitious model Cynthia Knox, and her lover, investor and rancher John Litchfield.

When charming motocross champ Harold ""Skeeter"" Lyerla meets ambitious model Cynthia Knox, young love blooms. The happy couple ties the knot in Las Vegas, never knowing their wedding vows will trigger a mysterious murder plot, and a decades-long investigation. Who could have wanted Lyerla dead, and was a love triangle to blame?

S2/EP3 Friends and family remember Cleveland Fire Lt. William Walker, who was gunned down outside of his Madison, Ohio, home in 2013. Four years later, his wife of four months, Uloma Curry-Walker stood trial for his murder and was found guilty. She was then sentenced to life in prison without the possibility of parole.

S2/EP3 Cleveland Fire Lt. William Walker worked hard to protect his neighborhood from crime. While he originally lived in Cleveland, Ohio, the firefighter moved to nearby Madison in 2013 with his new wife, Uloma Curry-Walker. That year, Uloma plotted William's murder and had him gunned down in the driveway of their home.

S2/EP3 Those involved in the murder investigation of Cleveland Fire Lt. William Walker reflect on the initial case leads. In 2013, Walker was gunned down outside of his Madison, Ohio, home. Friends and law enforcement speculated if he could have been killed over an automotive deal gone wrong, but they later found the lead had no merit.

Exploring new places and sharing their love of family brings newlyweds Uloma Curry-Walker and Fire Lt. William Walker closer than ever before. William had been married before, but Uloma got along well with his ex-wife. The joy of William's life — his teenage children —even looked at Uloma as their "second mother."