Mark of a Killer
(01/20/2019–04/24/2022)Crime
Oxygen True Crime (US)60 min
Source: unknown
Episodes
S01E01
Posed to Kill
S01E02
The Last Call Killer
S01E03
An Eye for Murder
S01E04
Pattern of Murder
S01E05
Momentos of Murder
S01E06
An Appetite for Murder
S02E01
Killer Caller
S02E02
Deadly Summer
S02E03
Deadly Design
S02E04
The Other Zodiac
S02E05
The Smell of Death
S02E06
Hunted to Death
S02E07
Collar and Leash Killer
S02E08
Killer Athlete
S02E09
Bound to Kill
S02E10
Keys to a Killer
S03E01
The I-40 Killer
S03E02
The I-95 Killer
S03E03
The Charmer
S03E04
The Englewood Killer
S03E05
Classified to Kill
S03E06
The Interstate Killer
S03E07
The Grim Sleeper
S03E08
The Tourniquet Killer
S03E09
Deaths in the Desert
S03E10
Summer of Fear
S03E11
The Monster
S03E12
The Bayou Strangler
S03E13
The Skull Crusher
S03E14
The D.C. Sniper