Andrew de Bartolome’s freshman yearbook photo
Andrew de Bartolome's freshman yearbook photo (Courtesy 9News)

Attorneys for the 16-year-old charged with attempted murder in connection with a pipe bomb left at Lafayette's Centaurus High School last May have asked a Boulder judge to close his court proceedings to the public.

Andrew de Bartolome, who is free on bond, is charged as an adult with felony counts of first-degree attempted murder, use of explosives and possession of an explosive or incendiary device, and two counts of felony menacing.

The teen is scheduled for a preliminary hearing on Aug. 28 as well as a hearing on Oct. 9 at which a judge will be asked to determine whether de Bartolome's case should be transferred to juvenile court or remain in district court.

De Bartolome's attorneys filed a motion dated Aug. 15 in which they request both of those hearings be closed to the public.

According to the motion, de Bartolome's attorneys said evidence regarding his "life, health, development, history and functioning" could be presented at the hearings.

"The court can exclude the general public if it determines 'it is in the best interest of the child or of the community,'" the motion reads. "Mr. de Bartolome asserts it is in his best interest to exclude the general public from the preliminary hearing and reverse transfer hearing... He respectfully requests the court close both hearings to the public."

The Boulder District Attorney's Office has not yet filed a response to the motion.

An explosive device, which police described as being "very similar to a pipe bomb," was found May 13 by a teacher inside Centaurus High, forcing the school's evacuation and the closure of South Boulder Road for several hours.

Officials said the device had a 9-volt battery and could have injured those in close proximity had it exploded. The device was detonated by the Boulder County bomb squad away from the school.

Police identified de Bartolome as a suspect and arrested him later that night at his parents' house, where police said further evidence linked him to the explosive device discovered in the school.

Boulder County deputies were called to de Bartolome's house in February after his parents were concerned he was making explosives in his room, and Boulder County prosecutors said evidence showed de Bartolome had a "long-term interest in explosive devices."