Rudy Eugene, 31, was killed by a police officer after Eugene's 18-minute attack on a homeless man. His body didn't show "any other street drugs, alcohol or prescription drugs, or any adulterants found in street drugs," according to the Miami-Dade County Medical Examiner Department.
A video of last month's incident shows Eugene coming across 65-year-old Ronald Poppo on a sidewalk along Miami's MacArthur Causeway, stripping clothes off him and eventually chewing on his face. Police said
Armando Aguilar, president of the Fraternal Order of Police, told CNN affiliate WPLG last month that he suspected Eugene was under the influence of "bath salts," a drug that contains synthetic stimulants that can "cause chest pains, increased blood pressure, increased heart rate, agitation, hallucinations, extreme paranoia and delusions," according to the National Institute of Drug Abuse.
Eugene's mother said last month that her son was "a nice kid" who could have been subdued with a Taser rather than gunfire.
"He was a good kid. He gave me a nice card on Mother's Day. Everyone says he was a zombie. He was no zombie. That was my son," the mother, who asked that her name not be revealed, told CNN affiliate WFOR.