seven lives lost in that horrific july 4th shooting, and demand action on gun violence prevention. what police initiated a car chase which would allow them to pull over and arrest the 21-year-old who conducted one of the worst mass shootings in highland history. he was, quote, taken into custody without incident. and days earlier, just a few states over an acre, in ohio, another police chase ended very differently. on january excuse me, on june 27th, jalen walker, eight a 25-year-old black man ll by couple ease after they said they tried to pull him over for alleged traffic and equipment violation for just after the midnight. and he refused to stop, a chastened shoot. that s when officers reported, quote, fired from walker jumped out of the car and the pursuit continued on foot. and a newly released body cam video, you can see the moments leading up to walker s death. and we should warn you here, what you are about to see is disturbing. we re slowing down here, slowing