CNN Erin Burnett OutFront November 26, 2015 00:29:00
Serious bodily injury -- >> reporter: someone points officers in the direction the 17-year-old went. 15 seconds later, police spot and surround mcdonald. >> at this point right here, you see an individual go from running to trotting to walking and then you pull the knife out, which is a provocative move. >> right there. >> what is this telling me as an officer, someone is potentially getting ready to make a move with this weapon. >> reporter: then, officer van dyke and his partner arrive, both immediately train their weapons on mcdonald commanding him to drop the knife. >> at this point, the o...
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