The man charged with killing seven people at Oikos University in Oakland back in 2012 has pleaded guilty to all counts in connection with the rampage.
One Goh faces seven life sentences, one for each victim.
The plea comes after court appointed doctors recently decided Goh's mental capacity had been restored and the case could go to trial.
Goh had been diagnosed initially as being unfit to stand trial.
He'd been diagnosed with paranoid schizophrenia and sent to Napa State Hospital.
Investigators believe Goh was looking for an administrator to kill when he went on the shooting spree.
He was upset he couldn't get his tuition back after withdrawing from classes.
Unknown to Goh, the administrator had left her job shortly after he quit going to school.