TAMPA, Florida (CNN) -- TV pitchman Billy Mays' death appeared to be from heart disease, not a bump to the head, according to the Hillsborough County medical examiner.
OxiClean pitchman Billy Mays died Sunday morning at his home in Tampa, authorities said.
Examiners conducted a preliminary autopsy Monday on Mays, the man with the booming voice famous for fronting products such as OxiClean and Orange Glo in TV commercials.
The pitchman was pronounced dead at his home near Tampa, Florida, Sunday morning, after his wife, Deborah, found him unresponsive, Tampa police said.
He was 50.
He had told a friend before he went to sleep Saturday he was not feeling well.
"He said he was groggy, he wasn't feeling that great. He wanted to get some sleep," Todd Schnitt said.
Watch friends remember Billy Mays »
Mays was on a
US Airways flight from Philadelphia that had a hard landing Saturday at Tampa International Airport after the front tire of the plane blew out.
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After the flight, Mays told a Tampa TV station, "All of a sudden as we hit, you know, it was just the hardest hit, all the things from the ceiling started dropping. It hit me on the head, but I got a hard head."
Watch Mays talk about hard landing »
Airline spokesman Jim Olson told CNN on Sunday there were no reported passenger injuries from Flight 1241. The airline vowed to "cooperate fully" with authorities in the investigation.
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