Peter Fong, of San Francisco, appeared in court this morning with a black eye and a heavily bandaged right hand and forearm. His arraignment has been delayed several times while he had himself been treated at the hospital following the attack.
"Not guilty, your honor," Fong told Judge Gail Dekreon today.
Fong also denied the use of a deadly weapon allegation. He remains in custody on a no-bail status.
Police said Fong attacked 59-year-old Ryosuke Yoshioka, also of San Francisco, for reasons that still remain unclear, in the parking garage located above the OfficeMax at 3700 Geary Blvd. at about 2:45 p.m. that afternoon.
Fong is not believed to have known Yoshioka and may have suffered from "psychiatric issues," according to prosecutor George Butterworth.
According to police, witnesses to the attack were able to detain Fong inside the garage until police arrived and arrested him.
Fong's attorney Elizabeth Hilton declined to discuss the case today following the hearing.
Fong is due back in court Feb. 10.