According to the toxicology report from the Miami medical examiner, the only drug found in the system of the ‘Causeway Cannibal' was marijuana.

There was no trace of bath salts. The examiner even had a second lab confirm there were no traces of bath salts. The doctor said, "marijuana is the only drug identified in the body of Mr. Rudy Eugene."

An expert said that marijuana alone was not likely to cause the brutal attack. He said that "there is an almost an infinite number of chemical substances out there that can trigger unusual behavior and it's nearly impossible for toxicology testing to keep pace with new formulations of synthetic drugs."