The man charged in the attack on Pennsylvania Gov. Josh Shapiro triggered an alarm outside the governor’s mansion but remained hidden before he set the residence ablaze, Shapiro said in an interview that aired Friday on "Good Morning America.

Pennsylvania Gov. Josh Shapiro’s mansion was the target of an arson attack last weekend, but the attacker's motives are unclear.

The extraordinary damage done to Pennsylvania Gov. Josh Shapiro 's official residence during an arson attack has been revealed in shocking images and photos that capture the aftermath of the blaze—which forced the politician to flee the dwelling in the middle of the night with his wife and children.