By Jelani Scott The Trojans coach was irate after a bizarre sequence in the closing seconds of the first half. View the original article to see embedded media. A bizarre officiating mistake late in the first half of Saturday’s USC-Arizona game infuriated Trojans coach Lincoln Riley, as the error led to the clock running out on a potential USC scoring drive. With USC leading, 17-13, the Trojans offense took over at their own 33-yard line with 45 seconds left in the second quarter after the defense forced a turnover on downs. Star quarterback Caleb Williams converted three of his four attempts t…