The victims have been identified as Lee's wife, Nerissa Lee, 46, assistant principal at Lincoln Middle, and Nerissa Lee's mother, 76. The medical examiner's office has not disclosed the mother's name.
Authorities said the shooting stemmed from a domestic dispute.
Berwyn North School District 98 Superintendent Michelle Smith announced Lee's death in a message to the school district community.
“It is with great sadness that I announce to you that Nerissa Lee, Assistant Principal at Lincoln Middle School, lost her life in yesterday’s tragic shooting that occurred outside of Lincoln,” Lee said.
Shortly after 4 p.m. Tuesday, police responded to reports of gunfire near the school and found a man in a car firing reifle shots into another vehicle before fatally shooting himself, police said. He also fired shots at responding officers, who took cover but did not return fire.
No students were hurt in the shooting.
