Dakoda Paul Marich, 18, 709 Franklin St., was charged with coercion of a witness and simple assault.
On June 8, police on bike patrol caught Marich and a 14-year-old boy breaking into a vehicle parked near the historic train depot at 300 Buffalo St. during the festival. The 14-year-old was burglarizing the vehicle while Marcich served as lookout, police said at the time of the original arrests.
Marich was charged with burglary of a motor vehicle and contributing to the delinquency of a minor.
On Sept. 6, the 14-year-old told police Marich had assaulted him Aug. 22 near his home. The boy told police Marich had threatened him before the assault as a result of the burglary investigation.
Police issued a warrant for Marich's arrest and found him Oct. 2. Washington County Detention Center reports also indicate he was charged the same day with driving on a suspended license, leaving the scene of an accident, failure to comply with financial responsibility and reckless driving. He was arraigned on the new charges the following day. He was released from the Detention Center on $12,000 bond.
Marich also was arrested Aug. 18 on possession of unlawful drug paraphernalia and contempt of court charges.