6. The Doodler
Number of Victims: at least 14
The Doodler is a serial killer that went on a rampage during 1974 to 1975, targeting the gay community in San Francisco. The killer visited gay bars, restaurants, and nightclubs looking for victims. He would then sketch them before their sexual encounter and eventual murder through stabbing. Despite having numerous suspects, the killer was never found which makes him part of the 11 most successful serial killers who have never been caught.
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