Posted: May 14, 2017 at 8:12 pm TIL: 76% of all known serial killers in the 20th century were from the United States. submitted by /u/ledgendary to r/todayilearned [link] [comments] Source: Reddit: TGIOKDI Upvoted Related Subscribe Login Notify of new follow-up comments new replies to my comments Label {} [+] Name* Email* Website Label {} [+] Name* Email* Website 0 Comments Inline Feedbacks View all comments