CHICAGO (CBS) — Police are questioning a witness about a deadly beating at a Southeast Side halfway house.

The incident happened just after 8 p.m. Wednesday at 10033 S. Calhoun Ave.

A witness called 911 at 8:25 p.m. and told police that the incident began when someone came to the door of the halfway house.

When the 49-year-old victim answered the door, the suspect repeatedly demanded: “Where’s my money?” and then followed the victim into the kitchen of the residence where he grabbed a knife and began beating the 49-year-old man.

The victim, Ronald Gillerson, suffered blunt trauma and was dead at the scene, according to a Cook County Medical Examiner’s office spokesman. An autopsy is scheduled for later Thursday.

Police said the victim was stabbed, punched in the head and body and hit more than once over the head with a computer monitor.

The beating continued into another room where his body was found on a couch with the knife in his lap, police said. He was pronounced dead by fire department personnel from ambulance No. 9, police said.

No one else was injured and police recovered the knife and computer monitor.

The witness, who is one of three men who lived at the residence with the victim, is being interviewed by police early Thursday in the slaying, which police think was possibly drug-related.

No charges had been filed as of early Thursday.

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