On April 28, 2021, at 3:30 p.m. Elmhurst police responded to a single report of a man with a gun at Elmhurst University, 190 Prospect Ave. The campus was placed on lockdown while police and university public safety conducted a systematic search of the campus. No suspect in this incident was located and the University lifted the lockdown and resumed normal operations at 6:00 p.m. This incident remains under investigation by Elmhurst Police and Elmhurst University Public Safety.