JOLIET, Ill. — At Joliet Junior College's "Active Shooter Drill" Wednesday, not only was the shooter scenario and police response realistic to an actual emergency situation, but so was the survival instinct of some unexpected heroes.

This year's annual drill had the most participants ever, said Chief Pete Comanda of the Joliet Junior Collage Campus Police. The college has offered the drill every year since 2008, and Wednesday two sessions were offered.

This year, it took place in the college's brand new Health Professions Building, which just opened last week.