Joliet Junior College police officers shoot and then handcuff a suspect during an active shooter drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media

Joliet Junior College police officer Chris Luttrell keeps his eye on a downed suspect while clearing rooms as teacher Mike Brooks looks out from his classroom during an active shooter drill at Joliet Junior College. | Joseph P. Meier~Sun-Times Media

Joliet Junior College police officer Chris Luttrell keeps his eye on a downed suspect while clearing rooms during an active shooter drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media

Joliet Junior College police officer Chris Luttrell directs teachers and students to safety during an active shooter drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media

Joliet Junior College police officer Chris Luttrell directs teachers and students to safety during an active shooter drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media

Joliet Junior College police officers clear rooms after finding a second suspect during an active shooter drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media

Joliet Junior College police officer Chris Luttrell removes the second suspect, community service officer Amanda Anderson, who portrayed one of the sisters in an active shooter drill at Joliet Junior College. | Joseph P. Meier~Sun-Times Media

Joliet Junior College police officer Jackie Healy holds a knife, gun and bomb, which she used as her weapons in an active shooter drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media

Joliet Junior College police officer Jackie Healy shoots a teacher as she portrays an active shooting suspect during a drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media

Joliet Junior College police officer Jackie Healy pulls a gun on fire science professor Duane Stonich as she portrays an active shooting suspect during a drill at Joliet Junior College. | Joseph P. Meier~Sun-Times Media

Joliet Junior College Police Chief Pete Comanda welcomes participants to an active shooter drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media

Joliet Junior College police officer Chris Luttrell shows participants the AR-15 rifle he will be responding with during an active shooter drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media

People try to hide from the shooter as she fires at them in a classroom during an active shooter drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media

Teacher Mike Brooks (left) and student Bob Verkler look out of their classroom as shots ring out in the hallways during an active shooter drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media

Joliet Junior College police officer Chris Luttrell keeps his gun pointed at a downed suspect during an active shooter drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media

Joliet Junior College police officer Chris Luttrell keeps his gun pointed at a downed suspect during an active shooter drill at Joliet Junior College, Illinois, Wednesday, January 9, 2013. | Joseph P. Meier~Sun-Times Media