A state trooper who has been accused of provoking a violent brawl while assigned to Vice President Joseph Biden’s security detail on Nantucket last Thanksgiving is still on the job while the police internal affairs unit continues to investigate. Eric Gahagan, a state police bomb technician, was reassigned immediately after the Nov. 24, incident in which he allegedly instigated several fights that left members of the US Air Force, also assigned to Biden’s detail, bloodied and bruised.
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