i understand there have been protests in grand rapids tonight. what are people saying? ? reporter: we ve seen protests throughout the evening. things doctor v calmed down now, but earlier there were hundreds marching and demonstrating in downtown grand rapids outside a very barricaded police department chanting justice for patrick lyoya. familiar calls, different case. now, there s still an ongoing investigation, of course, to determine whether this officer s actions were justified or whether he crossed a line. but the attorney for the lyoya family, ben crump, is already calling this use of force unnecessary and excessive and joins a chorus of people calling not only for the firing of this officer, but also the arrest and prosecution of this officer as well, don. listen, omar, we ve covered so many of these incidents at this network. a man is dead over a car registration. the whole thing happened in just two minutes and 40 seconds. but this isn t really cut and dry. reporter:
of grand rapids, michigan. a police officer now under investigation for shooting 26-year-old patrick lyoya in the head. a frustrated community demanding answers. stay in the car. reporter: on april 4th, police say lyoya was pulled over for empimproper registration one car he was driving but didn t elaborate on why they were looking in the first place. a few minutes into the stop, lyoya starts to run. no, no, stop, put your hands over your head. reporter: the officer catches lyoya. the two begin to wrestle. then the officer uses a taser. but it fails to make impact. the officer s body camera turns off during the struggle. police say it was unintentional. but the passenger in lyoya s car was recording this cell phone video and captured what happens next. drop the taser!