The San Bruno man arrested for setting off a firework in AT&T Park on Wednesday pleaded not guilty to the charges on Friday, Assistant District Attorney Alex Bastian said.
Paolo Pavone, 21, is accused of setting off what police said was an M-80-type firework in the bleacher section of the park during a San Francisco Giants game against the Los Angeles Dodgers.
At least five people were injured when the device went off near the Coors Light bar area in section 142, police said. The injuries, however, were not life threatening.
Pavone faces two felony charges of possession of a destructive device in a public place and possession of an incendiary device and a misdemeanor count of discharging a dangerous firework, Bastian said.
He is in custody on $100,000 bail and his next court date will be April 25 to set a preliminary hearing date.