When a man is found shot dead on a roadside in rural Ohio, it looks like a hunting accident. But then more outdoorsmen are found gunned down in neighboring counties. Someone is hunting the hunters.

In Flint, Michigan, someone is randomly stabbing men to death on the city streets, seemingly not caring if they live or die. What compels the man dubbed the Ghost Killer? Our experts try to understand what's driving this twisted killer's psychosis.