Homeless Case

Authorities are still looking for more witnesses to the grisly incident, which ended with Eugene's death.

Horrific photos emerged allegedly showing Poppo badly mauled Tuesday. Although the pictures, which appear to show a horrifically disfigured face of a man receiving medical treatment, have not been confirmed by officials as that of the victim, witness accounts appear to match with the images.

Local reports said most of the man's face was gone -- his nose bitten, his eyes gouged, his skin ripped away. All that remains intact is the man's goatee, according to the Miami Herald.

Detective William Moreno said police want to understand what led to the grisly scene in which a witness said the Eugene growled when a police officer told him to stop his attack.

"We know that there were many people on the MacArthur Causeway, and we're hoping they come forward," Moreno told The Miami Herald on Monday.

Another image shows the two men lying side-by-side in a pool of blood on the highway ramp.

Miami police have released few details about the weekend attack. Messages left for a police spokesman and the Miami-Dade County medical examiner were not immediately returned.

Police had suggested the assailant might have been on "new potent form" of LSD, according to local television.

An censored image showing the victim and attacker in Miami

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"Whenever we see that a person has taken all of his clothes off and has become violent, it's indicative of this excited delirium that's caused by an overdose of drugs," Armando Aguilar of the Miami Fraternal Order of Police, told WSVN-Fox 7.

"What's happening is inside their body their organs are burning up alive."

Witness Larry Vega was riding his bicycle Saturday afternoon when he saw the attack.

"The guy was, like, tearing him to pieces with his mouth, so I told him, 'Get off!'" Vega told Miami television station WSVN. "The guy just kept eating the other guy away, like, ripping his skin."

Vega flagged down a police officer, who he said repeatedly ordered the man to get off the victim. The attacker picked his head up and growled at the officer, Vega said.

Vega said the officer