Though a Dallas VA hospital physician assistant's behavior had caused concern among his co-workers for months, he continued to work at the facility until what looked like a homemade bomb was found in his office, according to an article on the Dallas News website.

The man had talked of hurting himself and came to work with what looked like self-inflicted cuts on his arms. Co-workers feared he had a gun at the hospital. He threatened his colleagues, warning a nurse to stay away from him “for safety reasons,” the article said.

Eventually, a co-worker called the police and Veterans Affairs police officers found scalpels stuck in the walls of his cluttered office and wires connecting an oxygen tank to a vial of liquid. Suspecting a homemade bomb, the hospital was evacuated.

The facility has had troubles for more than a decade. Hospital inspectors have for years documented poor care and dirty conditions.

Read the article.