The naked Florida man who chewed off the face of another man last month in a zombie-like cannibal attack used marijuana but not `` bath salts '' as police had suspected , authorities said Wednesday . Rudy Eugene , 31 , was killed by a police officer after Eugene 's 18-minute attack on a homeless man . His body did n'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 . `` The department has also sought the assistance of an outside forensic toxicology reference laboratory , which has confirmed the absence of 'bath salts , ' synthetic marijuana and LSD , '' the statement said . 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 Poppo lost 75 % of his face in the attack . 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 . Chicago greenlights citations for marijuana instead of arrests . Opinion : Marijuana law creates criminals .
Rudy Eugene , 31 , was arrested by police after he chewed off the face of a homeless man . His body contained marijuana but no other drugs , the coroner 's office says . Police had said Eugene was under the influence of ` ` bath salts '' The absence of ` ` bath salts '' is also confirmed by an outside lab , coroner says .