American mass murderer, perpetrator of the july 20, 2012 mass shooting at a century movie theater in aurora, colorado.

Born December 13th, 1987 (age 37 years) in San Diego.

H. H. Holmes

Born May 16th, 1861 in Gilmanton.

Died May 7th, 1896 at 34 years old

John Holmes

Born August 8th, 1944 in Ashville.

Died March 13th, 1988 at 43 years old

Seung-Hui Cho

Born January 18th, 1984 in Asan.

Died April 16th, 2007 at 23 years old

Omar Mateen

Born November 16th, 1986 in New York City.

Died June 12th, 2016 at 29 years old

Dzhokhar Tsarnaev

Born July 22nd, 1993 in Tokmok.