warnings ignored. hours before a hopkins student was run over and killed, a man called police about the repeat drunk driver. tonight, an exclusive wjz investigation. how did police respond? and was it enough? hi, everybody. i m sally thorner. i m kai jackson. here s what people are talking about. serious questions are being raised about a 911 call police won t let the public hear. a man claims he warned police about the dangerous driver before the crash that claimed the hopkins coed life. but his call, according to him, was ignored. tonight, he tells the story only to wjz s adam may. we have been asking about that 911 call for the last two days. and now, tonight, police admit there was a miscommunication and an attempt to get this drunk driver off the road before the accident. he just blasted off through a red light. and flew up the road. reporter: speaking only to wjz 13, nick walter said he followed repeat drunk driver, thomas megan for 13 minutes. tried to war