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Matthew Daniel Marton (Boulder County Sheriff’s Office)

Boulder police have arrested one man on weapons charges after reportedly firing an AK-47 into the air on University Hill.

Matthew Daniel Marton, 21, was arrested Wednesday on suspicion of unlawful purchase of firearms, felony menacing with a deadly weapon, defacing a firearm, possession of a defaced firearm, two counts of prohibited use of weapons – aiming at another person, two counts of prohibited use of weapons – discharge and three counts of reckless endangerment.

His bond that case is set at $10,000, according to court records.

The unlawful purchase and menacing counts are felonies, while the remaining counts are misdemeanors.

Police were called to the area of 12th Street and College Avenue just before 6 a.m. Monday for a report of shots being fired. Police responded and did not find any evidence of any property being struck or any shell casings, and there were no reported injuries.

According to an arrest affidavit, police identified Marton, who lived in an apartment in the area, as a person of interest at the time after officers were able to track the sound of the shots to his unit.

Marton appeared to be intoxicated and also told police he had been drinking, and he was arrested on suspicion of failing to comply with bond conditions that stated he was not supposed to consume alcohol.

Police found an AK-47 rifle with a scratched out serial number in Marton’s room, and both of Marton’s roommates said Marton had illegally purchased the rifle and occasionally fired it in the air.

According to the affidavit, Marton denied owning the gun and said it belonged to one of his roommates when questioned by police.

According to court records, Marton is already facing a felony menacing case in Boulder County following an arrest in September, and is not supposed to be in possession of firearms.

Anyone with any additional information related to this incident is asked to call Detective K. Euler at 303-441-3393 reference case No. 21-11636.