Season 4 Episode
- Season 3 The I-40 Killer
- Season 3 The I-95 Killer
- Season 3 The Charmer
- Season 3 The Englewood Killer
- Season 3 Classified to Kill
- Season 3 The Interstate Killer
- Season 3 The Grim Sleeper
- Season 3 The Tourniquet Killer
- Season 3 Deaths in the Desert
- Season 3 Summer of Fear
- Season 3 The Monster
- Season 3 The Bayou Strangler
- Season 3 The Skull Crusher
- Season 3 The D.C. Sniper
Mark of a Killer - Season 3 Episode 6 The Interstate Killer
7.30 43 minutes A killer crisscrosses the Midwest leaving a string of victims along the interstate. When investigators are hot on the highway killer’s trail, the murderer suddenly changes his mark.
