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Billy Mays, June 28, age 50: Hyper TV pitchman Mays (OxiClean!) had become one of commercials' best-known personalities at the time of his death. Just before he died, he said he had been hit during an airplane landing, but after he was found dead in his Florida home, an autopsy showed that he had severe hypertension and heart disease. Toxicology reports also showed that Mays had been using cocaine, oxycodone and several other drugs.