Broward Sheriff Al Lamberti is just one of the doubting Thomases who think the so-called 'Causeway Cannibal' was on something not caught by either of the two labs that ran the toxicology tests.

Courtesy Miami Herald, CNN

Rudy Eugene, the so-called Causeway Cannibal, was not on 'bath salts' or any other exotic drug when he chewed off the face of a homeless man last month, according to toxicology results released Wednesday.

Courtesy Miami Herald, CNN

Rudy Eugene, who was naked, attacked Ronald Poppo as the 65-year-old vagrant dozed under the MacArthur Causeway.

Miami Dade Police Department

Ronald Poppo, the Miami 'zombie' face-chewing attack victim, is speaking about the Rudy Eugene face-chewing attack that captured the world's attention months ago.

Ryder Trauma Center at Jackson Memorial Hospital

Courtesy Miami Herald, CNN

Courtesy Miami Herald, CNN

Courtesy Miami Herald, CNN

The 'zombie-like' attack footage, taken by security cameras in downtown Miami, shows the entire 18-minute attack by Rudy Eugene on Ronald Poppo, police say.

A film crew recreated the now infamous MacArthur Causeway 'zombie attack' Saturday.

WPTV

Rudy Eugene