Bradley Sayer, the 18-year-old accused of fatally shooting two people inside the Chico Branch Library on June 22, pleaded not guilty during a further arraignment in Butte County Superior Court. He faces charges stemming from the June 25 shooting that killed two people and wounded others. During Thursday's hearing, the court addressed evidence collection and scheduled the next stage of the case. Sayer's next court appearance is scheduled for Aug.

6, when attorneys are expected to set a date for the preliminary hearing.