The Massachusetts man charged in the shooting death of Rochester police Officer Anthony Mazurkiewicz has pleaded not guilty.
Kelvin Vickers waived the reading of the eight-count indictment and will remain behind bars.
His next court date is in November.
He allegedly knew he was shooting at police when he ambushed Mazurkiewicz and his partner, even though they were in plain clothes in an unmarked car.
The shooting also wounded Officer Sino Seng and 15-year-old Tamaia Walker.