Angel Maturino Reséndiz (born Ángel Leoncio Reyes Reséndiz; August 1, 1959 – June 27, 2006), known as The Railroad Killer, was a Mexican serial killer suspected in as many as 23 murders across the United States and Mexico during the 1990s, some of which involved sexual assault. He had become known as "The Railroad Killer", as most of his crimes were committed near railroads, where he had jumped off the trains which he was using to travel.