DENVER (AP) — Authorities have released the name of a man who was shot to death outside of a home in Denver. The Denver coroner's office identified the victim Monday as 28-year-old David Castillo, who died of a single gunshot wound. His death has been ruled a homicide. The Denver Post reports (http://goo.gl/ZND2Ad ) Castillo was shot in the Athmar Park neighborhood Thursday night and died at a hospital the next day. Police spokesman Doug Schepman says no arrests have been made, and investigators do not have a description of the shooter. Read more on Colorado Springs Gazette