Article continues below advertisementJ.D. Vance believes he knows who's to blame for the recent attack at his Cincinnati, Ohio, home.Speaking about the Monday, January 5, incident - in which 26-year-old William Defoor allegedly smashed four windows at the residence - the VP told Fox News' Jesse Watters on Wednesday, January 7, "When it happened, I think everybody had the same reaction that we did, which is it's probably a deranged left-wing person who wanted to cause terror."Vance added that Defoor, who was said to be wielding a hammer, possibly planned to do something "worse" to his family.