According to the report, an unnamed informant in the Pit described two men believed to be involved in the incident, one of whom went by the name "Ben." The informants told police that both of the people might be found near the Anderson Bridge on the Charles River.

The detectives went to the river, where they said they spotted an individual on a bicycle matching one of the men's descriptions.

The bicyclist stopped, apparently thinking the detectives were friends of his. The police asked his name.

The suspect told detectives that his name was "Ben," and police soon determined that he was Bargeil. The police report does not indicate if Bargeil is a skinhead.

The man led police to a makeshift campsite between Anderson and Eliot bridges.

The campsite contained seven males and two females, according to a Massachusetts State Police (MSP) report written by trooper Robert Moore.

CPD detectives determined that one of the men at the campsite, Michael D. Dupont, 25, of 4 Irving St. in Hudson, Mass., had an outstanding warrant in Marlboro District Court. According to the CPD report, Dupont was transferred to the MSP barracks in Brighton for processing.