When did Making a Serial Killer Season 1 Episode 4 air?
Making a Serial Killer Season 1 Episode 4 aired on January 1, 2021.


Criminologists, psychologists, families of victims and murderers, and others reflect on the histories of serial killers, in search of answers.
Detectives in Washington search for the perpetrator behind three unsolved murder cases; they attempt to match a DNA sample to a suspect.
Direct answers for episode-level questions and details.
Making a Serial Killer Season 1 Episode 4 aired on January 1, 2021.
This episode runs for approximately 46 minutes.
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