Police arrested an East Patchogue man on Tuesday and charged him in the armed of a Holbrook Dunkin' Donuts last week.
Ryan Trepiccione, 26, walked into the Dunkin' Donuts on Furrows Road last Thursday evening, approached an employee and displayed a handgun, police said.
Trepiccione demanded money from the employee, who complied with the demand and Trepiccione fled the scene, police said.
Trepiccione was arrested at his East Patchogue apartment at 5:30 p.m. Tuesday, police said. Police did not say what led them to Trepiccione.
Trepiccione is charged with first degree robbery and is scheduled to be arraigned Wednesday at First District Court in Central Islip.