Trump supporters try to break through a police barrier, Wednesday, Jan. 6, 2021, at the Capitol in Washington.
It was a chilling sign that many at the vanguard of the mob that stormed the seat of American democracy either had military training or were trained by those who did.
The FBI identified Pezzola as the bearded man seen in widely shared video shattering an exterior Capitol window with a stolen Capitol Police riot shield before he and others climbed inside.
More than 125 people have been arrested so far on charges related to the Capitol riot, ranging from curfew violations to serious federal felonies related to theft and weapons possession.
Meanwhile, police departments in such major cities as New York, Los Angeles, Las Vegas, Houston and Philadelphia announced they were investigating whether members of their agencies participated in the Capitol riot.