John Leonard Orr (born April 26, 1949) is an American convicted serial arsonist, mass murderer and former firefighter. A fire captain and arson investigator in Glendale, California, Orr was convicted of serial arson and four counts of murder; he is believed to have set nearly 2,000 fires in a 30-year arson spree, most of them between 1984 and 1991, making him the most prolific serial arsonist in U.S. history.
John Leonard Orr (born April 26, 1949) is an American convicted serial arsonist, mass murderer and former firefighter. A fire captain and arson investigator in Glendale, California, Orr was convicted of serial arson and four counts of murder; he is believed to have set nearly 2,000 fires in a 30-year arson spree, most of them between 1984 and 1991, making him the most prolific serial arsonist in U.S. history.
Source: Wikipedia "John Leonard Orr" · CC BY-SA 4.0
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