BEDFORD -- Chagrin Falls High School student Addison McBrayer, 18, who police say claimed he had explosives in his backpack May 3 when he walked into the high school wearing a rubber horse's head mask entered a plea in Bedford Municipal CourtMonday.

McBrayer, charged with inducing panic, a felony, pleaded not guilty before Bedford Municipal Court Judge Brian J. Melling.

Then McBrayer's attorney, Richard Lillie, asked Melling to continue the pretrial so Melling set the pretrial for 9:45 a.m. June 12.

McBrayer, a senior,was arrested and charged late Friday May 3 and was held in Solon City Jail until he posted the $2,500 bond on Monday May 6.

Police evacuated both the high school and the middle school after McBrayer allegedly made the statement about 9:45 a.m. that Friday. They later closed both schools.

When he walked into theschool he was confronted by the assistant principal, who inquired as to what was in the bag. McBrayer responded that the bag contained 25 pounds of plastic explosives, according to Police Chief Jim Brosius.

McBrayer was placed under arrest by Chagrin Falls Patrolman James Levine for inducing panic. Levine was working as a school security officer at the time and was present during the initial confrontation.

The Lake County Explosive Ordnance Disposal Unit, Geauga County, Cuyahoga County and Cleveland RTA K-9 units were summoned to the campus. Several neighboring police departments also assisted.

The schools were searched and nothing was found.