What a piece of shit this kid really is. The defense has tried to portray him as a boy scout, trying to help people, and his "breakdown" was one of the worst pieces of acting I've ever seen. One of the "excluded" pieces of evidence was that he beat up and girl and punched her in the face.
Driving without a license, on a regular basis. Buying a gun he wasn't legally old enough to buy. When the building he was supposedly "protecting" was safe, he went into the crowd, looking for trouble. Lock this piece of shit up and throw away the key.