The “cannibal” attacker who chewed off another man’s face in a gruesome crime in Miami Saturday is suspected to have been under the influence of a dangerous drug sold under the innocuous name “bath salts.”

The victim of the attack, a homeless Miami man, was in critical condition Monday after 75% to 80% of his face was chewed off, CNN reports. Police said the attacker, Rudy Eugene, 31, exhibited “insane” behavior similar to other violent incidences linked to bath salts.