Ed McMahon, best known for his role as Johnny Carson's No. 2 on the "Tonight Show," died at a hospital in Los Angeles this morning, his agent said.
The 86-year-old TV personality and former late-night sidekick died this morning surrounded by his family at Ronald Reagan UCLA Medical Center in California, his agent Howard Bragman told NBCLA.

McMahon had a "multiple of health problems the last few months," Bragman said, though he declined to name the entertainer's cause of death. A person close to the TV personality told the Associated Press that he had bone cancer, among other ailments, and had been hospitalized for several weeks.