A Georgia man suffers 17 stab wounds while on a hunting trip, and authorities rule his death a suicide, shocking his family. Another man disappears without warning -- the only clue is his burned-out car, found 14 hours from where anyone saw him last.

Weeks before graduation, officers find a Georgia high school senior's strangled body in flames, sparking a decades-long quest for justice. In South Carolina, a promising college student disappears after scouting bachelor party locations with a friend.

A bride-to-be vanishes weeks before her wedding. Suspicion swirls around her fiancé and ex-boyfriend, before a shocking revelation about a coworker makes him the main person of interest. Then, the mysterious death of a young trans woman.

A college student sends his sister a mysterious text about leaving the country. Later, his body turns up in a lake, weighed down by a backpack full of rocks. A young woman vanishes after trying to make a call from a payphone. Was it a call for help?

A young woman acts erratically at a restaurant and police take her into custody. They release her in the middle of the night -- and she disappears. A soldier at Fort Hood dies after falling off a balcony. Was it an accident, suicide or murder?

The families of two young mothers who die in suspicious circumstances search for answers. Racheyl Brinson's husband says she fell to her death while hunting, while Jessica Alva's boyfriend tells police that she hung herself.

Oakley Carlson is turning five, and no one can find her. Her foster parents are worried sick while biological parents can’t account for where she’s gone. And a young mother leaves a bar with a man she doesn’t know -- and ends up dead.

A truck driver finds an unconscious woman on a Missouri highway. Police determine the suspect attacked her elsewhere and placed her on the road. Then, an unknown killer bludgeons a mom and her two daughters at home while her son and nephew cling to life.