HYDE PARK (CBS) — Police are investigating a murder mystery in Hyde Park, where detectives say a man was shot in the head.

The shooting took place in the 3700 block of 58th Street at 10:30 p.m. Thursday.

Witnesses say the killer then calmly walked away, got into a white car and drove away.

Investigators have not yet identified the victim, but they believe he owns a business in the area.

There’s no word about his killer or the motive, but police are asking anyone who may have information about the murder to contact them.