16. Henry Lee Lucas
Labeling Henry Lee Lucas a "hypocrite" is just about the nicest thing one could ever say about the psychopathic Virginian. At one point, after being arrested, Lucas wrote a letter that stated "I am not a serial killer," but, in all, he confessed to around 600 murders, bringing the nickname "The Confession Killer" upon himself.
Growing up as a victim of abuse, Lucas, during his childhood, spent three days in a coma thanks to his mother beating him with a wooden plank, which happened when, for a change, she wasn't making him watch her have sex with men. She even dressed him up as a girl, and, as reports state, beat him up for accepting a teddy bear from a grade school teacher.
On January 11, 1960, Lucas killed his mother by smashing her neck with broom, leaving her in a pool of blood to slowly die. After serving 10 years in jail for that, he—per his own accounts—teamed up with friend Ottis Toole and went on a cross-country killing spree. Although only three victims have been directly pegged to Lucas' hand, his claims of about 200 times that have earned Lucas one of pop culture's more notorious serial killer reputations.
And he certainly had no problems with increasing his profile. Although later considered to be bullshit, Lucas' confessions grew increasingly ridiculous before his 2001 passing. Amongst other claims, he told authorities that he killed Jimmy Hoffa and also hand-delivered poison to Jim Jones for the cult leader's Jonestown mass suicide.