State prison officials say they have no comment because the case is under investigation. But police say Friday night, Adam Mau-Goffredo grabbed a pen and stabbed a corrections officer near his right eye.
He's suspected of going on a rampage that left three people dead.
"He has a documented history of paranoid schizophrenia," Brook Hart, defense attorney, said after a court hearing July 10. "And I imagine that that history and his mental status will play a central role in the case."
Now, Mau-Goffredo is accused of hurting one more.
Over the weekend, officers booked him at the Kalihi police station for investigation of second-degree assault. We're told he walked up to a guard during a free period inside OCCC's mental-health unit, and attacked him.
He's already accused of fatally shooting a cab driver and a Kapahulu couple at a Tantalus lookout, and tying up three people during a home invasion shortly after the shootings.
His attorney said Monday, "There was a (new) incident. It sounds like it was a function of Adam's mental disease or disorder."
We're told the 32-year-old corrections officer got a puncture wound to his eye lid, and is back at work.