I think the boy had anger issues. He was ok, just panicked. Said he had asked 5 times to tap but no one heard him. He was getting his own go across his face so that might have muffled it. the ref was pretty close.
He had a tantrum after both his other fights as well.
He apologised afterwards as did his coaches.
Hopefully the boy will learn from it and compete again.
Speaking of submissions, are you at all eager for tonight's ufc, featuring Connecticut's own UFC light heavyweight champ Glover Texiera defending his 205lb belt vs Jiri Prohazka who is an absolute animal.