CNN  — 

When the man charged with killing 11 people Saturday at a Pittsburgh synagogue arrived with injuries at Allegheny General Hospital, the staff – some of whom are Jewish – stepped up and did their jobs, even as he continued to spew hate, their boss said.

“Isn’t it ironic that somebody who’s yelling in the ambulance and the hospital, ‘I want to kill all the Jews,’ is taken care of by a Jewish nurse, and there’s a Jewish hospital president that comes in to check on him afterwards,” Dr. Jeffrey Cohen, the facility’s top administrator, told CNN’s Alex Marquardt a day after the massacre.

Cohen is a member of the Tree of Life synagogue, where the shooting unfolded. He lives nearby and even heard the shootout between police and Robert Bowers, who pleaded not guilty Thursday to 44 federal charges, including 32 that may be punishable by death.

Cohen this week has praised the professionalism that his staff showed in treating Bowers, 46, who had a history of posting anti-Semitic rhetoric online and told police Jews were “committing genocide to my people,” according to an FBI affidavit. </