(Belleville, IL)  —  Police are investigating after someone was carjacked in the parking lot of a Catholic high school in Belleville.  The victim was in the parking lot of Althoff Catholic High on West Main just before 7:00 last night.  A male suspect reportedly approached, implied that he was armed, and demanded the victim’s car keys.  Police are searching for a black 2009 Chevy Impala with Illinois registration of E983866.