Police arrested Kyle D. Grinaski, 19, of 4035 Pleasant Street in Thorndike at 10:00 Sunday morning.
He is charged with armed robbery while being masked, and is being held at the Palmer Police Department.
According to Palmer Police Chief Robert P. Fryd, Grinaski gave a statement to police investigators admitting to the crime.
He will be arraigned in Palmer District Court on Monday.
It will be up to representatives from the District Attorney’s office and the U.S. Attorney’s office to decide whether Grinaski should be tried in state or federal court.