Cody Balmer, who confessed to attacking the Pennsylvania governor's mansion and lighting a Molotov cocktail, pleaded guilty to attempted murder and arson.

The attacker managed to slip past state troopers guarding the governor's residence on April 13 and set a fire.

New surveillance video shows a hammer-wielding arsonist smashing his way into the Pennsylvania Governor’s residence and setting it on fire with Molotov cocktails. DA Fran Chardo…