In Matter of Juan J. (81 N.Y.2d 739, 609 N.E.2d 121, 593 N.Y.S.2d 768 [1992]), a case involving a juvenile delinquent, respondent was charged with acts which, if committed by an adult, would constitute the crimes of second degree robbery and third degree assault. In that case, respondent, and three others, all attacked the victim. Two people held down the victim, another person repeatedly struck the victim with a chain, while the fourth person stole the victim's wallet. Further, all four attackers fled within moments after the wallet was stolen. Based in large part on his continued participation in the beating, and even though there was no direct evidence that respondent took the wallet or used the chain, respondent was found to have committed the acts alleged.