He also was on WGN's Night Beat television newscast.
Mercer came to WGN in 1956 and was on the air for more than a quarter century. He left the station in 1982.
He also was on WGN's Night Beat television newscast.
Mercer came to WGN in 1956 and was on the air for more than a quarter century. He left the station in 1982.