How did Dave's dad die in Dave at night?

David Pelzers father died of terminal cancer

He died from a cut aorta

Long battle with liver cancer that he had before his massive heart attack.

Dave Quinn Daily resigned from office, because he was too old to be a U.S. president but this is not what caused him to die. He died on December 31, 2099 from a Heart Attack.

Dave Williams died on August 14, 2002 at the age of 30.