Billy Mays' 911 phone call has been released, as well as what likely caused his sudden death.

The TV pitchman was found dead Sunday. He was 50.

According to People.com, Mays died from a pulmonary embolism. A coroner in Tampa, Fla., announced preliminary autopsy results Monday. Evidence of heart disease was also found.

The AP says Mays, who is perhaps known best for his enthusiasm while pitching products in TV infomercials, was found unresponsive on Sunday morning by his wife, Deborah Mays. He was pronounced dead at 7:45 a.m.