Embattled NIU police chief has dealt with controversy before.

By Mike Moen

DeKalb, IL – As October winds down, the investigation into Northern Illinois University's police chief continues. Donald Grady is accused of threatening a student journalist. He's been placed on administrative leave, and is in danger of losing his job. As WNIJ's, Mike Moen, reports, this isn't the first time Grady has had to face critics: