MEMPHIS, TN (WMC) - An autopsy report confirmed that Memphis native Jimi Jamison's death was partly caused by methamphetamine use.
The coroner stated that the toxicology report showed "a toxic to lethal concentration of methamphetamine and a therapeutic concentration of its metabolite, amphetamine."
The singer and songwriter was found unresponsive in his home on Sept. 1. It was initially believed Jamison died of a heart attack.
The autopsy report confirmed the singer had cardiovascular disease, which led to a 90 percent blockage of each coronary artery. However, the report also noted that Jamison died of "hemorrhagic stroke of the brain with acute methamphetamine intoxication contributing."
Because meth was determined to be a contributor, and the circumstances leading up to the death were not suspicious, the coroner ruled Jamison's death as an accident.
Jamison was well known as the former lead singer of Survivor. Family and friends held a public memorial at Central Church in Collierville in September.