A driver was killed in a single-vehicle crash before dawn Monday in north Denver, police said. The crash happened near the intersection of West 52nd Street and Sheridan Boulevard before 3:40 a.m., according to a Denver Police posting on Twitter. Paramedics pronounced the driver dead at the scene. Police were investigating. No other information, including the identity of the victim, was released. #TRAFFIC: #DPD is investigating a traffic crash involving one motorist near W 52 St / Sheridan Blvd.