Arma Angelus was a metalcore band from Chicago. The band started in 1998 and broke up in 2002. The members of the band were Peter Wentz (singer, now plays bass guitar in Fall Out Boy), Tim McIlrath (played bass guitar, now lead singer of Rise Against), Jay Jancetic (played guitar, now plays guitar for the Chicago band Holy Roman Empire), Daniel Binaei (played guitar), Adam Bishop (played guitar, now an English teacher at San Dieguito High School Academy in Encinitas, California), and Timothy Miller (played the drums).