October 31, 2011 9:14 pm Halloween Sex Offender Crackdown About 100 Cook County Sheriffâ??s Police officers visited the homes of registered sex offenders in unincorporated parts of Cook County Monday in advance of Halloween. Local 3:10 Suspect charged in killing of Chicago police officer faces additional charges 2:03 Prosecutors detail how Calumet City cold case unfolded, with suspect finally arrested 0:54 Richest person in Illinois revealed in new Forbes Magazine ranking 1:45 Video shows arrest of suspect in CPD officer Luis Huesca's murder 2:25 Thursday afternoon forecast