Few minutes from the stop lyoa begins to run. no. no. no. put your hands up. reporter: the officer catches lyoya. they begin to wrestle. then the officer uses a taser. it falsz 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 captured this cell phone video and captured what happened next. drop the taser! we are determined to get this right. reporter: authorities now facing tough questions like whether the officer s life was in enough jeopardy to draw his gun. so a taser is not per se a deadly weapon. that would be what was known as potential so the not necessarily.