A Las Vegas man accused of killing another at a bus stop allegedly ate the victim's face as cops responded to the bloodied downtown scene.

Colin Czech, 31, has been charged with open murder, according to jail records.

It's unclear if he entered a plea to the charge or retained an attorney to comment on his behalf.

On Sunday, officers responded to a report of two men fighting at a bus stop, according to the Las Vegas Metropolitan Police Department. When they arrived, the victim was unconscious and bleeding from the head, said police.

Responding officers allegedly witnessed Czech kneeling next to the victim, with "biological matter in his hair, mouth and on his clothing," court documents stated, KLAS-TV reported. He was taken into custody.

The victim, identified as Kenneth Brown, was pronounced deceased at the hospital. An official cause of death has not yet been released.

During police questioning, Czech was "going in and out of consciousness," because "something was possessing him" and he had been awake for "five days straight," he allegedly told detectives. He also allegedly admitted to using his teeth "to eat [the victim's] eyeballs and ears," according to the documents.

It's unclear the circumstances that led up to the fight. The relationship between the victim and the suspect is also unknown.

Czech was absent from his initial court hearing Monday due to his hospitalization.

He is due back in court Wednesday.