Richard Dunn, an actor who worked often with comics Tim Heidecker and Eric Wareheim, has died after a few days of being unconscious, The AP reported. He was 73.

Rickard Dunn had been hospitalized since Sunday, William Kerwin, Richard Dunn's long time agent was cited as saying.  Dr. Kerwin did not reveal the cause of death.

Some sources said Richard Dunn suffered stroke.  

Stroke, the third leading cause of death in the United States, occurs when blood flow to the brain  stops. Within minutes, without oxygen, the brain cells start to die.  Americans suffer more than 700,000 strokes each year.

Wait and see what really killed Richard Dunn.

DJ