Tom Ahern discusses ongoing investigation in Fox Lake

Published September 4, 2015 11:13am CDT

CHICAGO (FOX 32 News) - Authorities have recovered video that they hope will provide significant help to detectives searching for three men wanted in the fatal shooting of an Illinois police officer, the lead investigator said Thursday.

Tom Ahern, senior special agent with the Chicago division of the Bureau of Alcohol Tobacco and Firearms, sheds some light on the investigation in Fox Lake.