"ER" actress Mary Mara has died after reportedly drowning in a New York river, she was 61. According to the New York State Police, Troopers and Cape Vincent Fire and Ambulance arrived on the scene on Sunday morning and discovered Mary in the St. Lawrence River. "The preliminary investigation suggests the victim drowned while swimming," officials said. "She was electric, funny and a true individual. Everyone loved her. She will be missed," Mary's manager, Craig Dorfman, told Access Hollywood.