EAST PEORIA, Ill. -- East Peoria Police continue an informational investigation into a shooting Saturday night that left three people dead.
Police say the shooting happened just before 8 p.m. Saturday inside the Fifth Quarter Sports Bar.
Authorities say the suspect, 40-year-old Jason Moore of Creve Coeur, walked into the crowded bar and shot his ex wife, 33-year-old Lori Moore of Morton and her boyfriend, 36-year-old Lance Griffel of Peoria.
An off-duty FBI agent then shot and killed the suspect, Jason Moore.
Police continue to look into the Moore's history.
Court records show they divorced in May of last year. They had two young children together.
East Peoria Police say they are talking to the Moore's family and friends to try to find out what led up to the shooting.
The Police Chief says this is a tragic reminder that anyone who feels threatened should speak out.
"You need to bring your information forward to the authorities, to family members, to anybody that will listen to make sure that that information is out there so that we can take any action that we can to see that it doesn't escalate to this type of situation,” said East Peoria Police Chief, Dick Ganschow.
Lori Moore was at the bar for her 1999 East Peoria High School reunion.
At the time more than 100 people were in the building.
A local psychotherapist says those witnesses can have a variety of reactions. Dr. Joy Miller says time and talking to family, friends or a counselor can help.
"Unfortunately the tendencies of post-traumatic stress disorders are to pull back, to move away, because you feel helpless, you feel hopeless, you feel scared and so people retreat and you need to do the opposite,” said Dr. Miller.