Mona Gable, author of 'Searching for Savanna,' spoke with us about LaFontaine-Greywind's murder, and how it sparked progress in ensuring justice for missing and murdered Native American women and girls.

Aside from the emotional pain and physical injury it causes, bullying among kids can also result in death. Young bullies have murdered their victims. Bullying at school has also led to some victims lashing out and killing.

The Baton Rouge serial killer murdered eight women in Louisiana between 1994 and 2004, around the same time serial killer Derrick Todd Lee was also active in the area.

Susan Jonusas talks to us about her book 'Hell's Half-Acre' about a 'family' of four known as the 'Benders,' who were accused of murdering 11 people in Kansas but fled before they were prosecuted.

Read about the life and death of Tim McCoy, serial killer John Wayne Gacy's first known victim. Gacy murdered at least 33 boys and men between 1972 and 1978

During the 1990s and early 2000s, more than 30 women were targeted by serial killers, including Derrick Todd Lee, in the Baton Rouge area.

Dr. Marissa Harrison, an evolutionary psychologist and author, speaks to us about her research on female serial killers and how she was impacted by victims' stories.

More than 22 years after the murder of Keith Jones, a veteran Marine, his friend, Michelle Ashley, was charged with his murder. But was the real killer—or killers—caught?

After a Georgia man's murder, detective John Dawes promised the victim's wife he would solve the cold case. He didn't give up until he did.

During his 1980 trial, evidence against the serial killer was so strong that his guilt was not in question. Instead, the case hinged on whether he'd been legally insane when he killed.