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Death

On September 21, 1998, Griffith Joyner died in her sleep at home in the Canyon Crest neighborhood of Mission Viejo, California, at the age of 38. The unexpected death was investigated by the Orange County Sheriff- Coroner 's office, which announced on September 22 that the cause of death was suffocation during a severe epileptic seizure.

Griffith Joyner was found to have had a cavernous hemangioma, a congenital vascular brain abnormality that made her subject to seizures. According to a family attorney, she had a tonic-clonic seizure in 1990 and had been treated for seizures in 1993 and 1994. According to the Sheriff-Coroner's office, the only drugs in her system when she died were small amounts of two common over-the-counter drugs, acetaminophen and the antihistamine Benadryl.