July 16, 2013 6:40 pm Rockville Doctor's Death Ruled Homicide The Montgomery County Medical Examiner’s office ruled the death of a doctor a homicide. He was found dead in his Rockville home. News4’s Pat Collins has the latest on the investigation. Local 1:27 1 dead, 4 hurt in Suitland crash 3:27 How the pulley system helps first responders make rescues 0:24 1 killed, 23 others hurt in Maryland party bus crash 1:05 Court docs reveal moments leading up to Dunbar High School shooting that hurt teen 2:29 George Washington University president says pro-Palestinian encampment is ‘unlawful'