Michael Schaab, 25, was killed in a mass shooting at the Western Psychiatric Institute and Clinic in Pittsburgh on March 8, 2012. Schaab, a therapist and University of Pittsburgh graduate who had been accepted into a master’s program for occupational therapy, was in the lobby returning from lunch and on the phone with his mother about his upcoming wedding when the call abruptly ended. The gunman, 30-year-old John Shick, entered armed with two firearms and wounded six others; Schaab was the only fatality.

University of Pittsburgh police confronted and fatally shot Shick at the scene. Schaab’s family had already suffered an earlier loss when their daughter Nancy Schaab was shot and killed in October 2010. In March 2014 Michael’s mother, Mary Schaab, filed a lawsuit alleging inadequate security at the clinic and claiming the shooter, who had documented mental health problems, should have been involuntarily committed.

If anyone knew Michael, his work at the clinic, or has information about security around the building that day, please share what might help the family’s search for answers.