Richard Plotts, the 49-year-old suspect accused of killing his caseworker and injuring his psychiatrist at a Philadelphia-area hospital on Thursday, will be charged with murder, authorities say. Plotts reportedly had a long history with guns and mental illness.

The man allegedly killed his caseworker, Theresa Hunt, at Mercy Fitzgerald Hospital in Delaware County before exchanging gunfire with his psychiatrist Lee Silverman, who happened to be armed. Plotts was then wrestled to the ground and taken into custody at the hospital while he recovered from injuries.

According to the AP, an area police department said Plotts had had previous run-ins with authorities.

Via the AP:

Police in Upper Darby, where Plotts once lived, cited at least three mental health commitments, including one after he cut his wrists and one after he threatened suicide. His record also includes past assault, drug and gun charges, according to police and court records.

The Delco Times reported that Plotts had been banned from at least one facility for aggression before.

[Image via AP]