Colorado ? A man shouting threats was subdued and arrested at the Colorado state Capitol on Monday, less than four months after a trooper shot and killed an armed man inside the building, witnesses and authorities said.

Derrick Shumate, 28, tried to get through a locked door on the Capitol’s east side and punched a door window out, State Patrol spokesman Ryan Sullivan said. Shumate ran from a trooper inside the building, ignoring a command to stop, but surrendered outside the building.

Shumate, who was unarmed, was arrested on suspicion of misdemeanor criminal mischief and booked into the Denver County jail. He was being held on $750 bail.

On July 16, a member of Gov. Bill Ritter’s security detail shot and killed an armed man outside Ritter’s office after he shouted, “I am the emperor and I’m here to take over state government.”