"He was one of the most vile, evil persons that I had ever dealt with. It was like every time you turn around there's another murder." - FBI Agent Mark Young They called him the 'Railroad Killer.' Angel Resendiz earned the nickname because of his penchant for committing his crimes near railroads, using the rail cars as his own personal get-away system. Committing murder after murder, he was able to elude both American and Mexican authorities for over a decade.