David Begnaud

When Katlyn Lyon Montgomery dies in October 2022, her mother turns to TikTok to share her grief and demand justice, building an online community to help hold Katlyn's killer accountable.

When a teenager shoots two of his friends, he claims the shooting was triggered by a reaction to a popular prescription acne medication that caused him to experience homicidal thoughts.

More than 50 years after a teenage girl is murdered in small-town Nebraska, the long-dormant case comes together to make an arrest.

When a college student in Milwaukee vanishes after a first date, investigators race to retrace her final movements.

A gravely ill young woman is rushed ot the hospital where doctors discover her body is full of lead, leading everyone to wonder who caused it.

A woman dies after an alleged accidental shooting in her bedroom; eight years later, surveillance audio upends the case.