Which doesn't address the issue we are actually talking about here, that of the clear tendency of US police to shoot blacks but take white offenders alive, irrespective of the 'crime' (again - the white shooter at Stoneman Douglas High was taken alive, as was the white shooter at Huffman High School in Birmingham, Alabama, the white shooter at Santa Fe High School, the shooting of parents by a white shooter at Michigan High School, the white shooter at Freeman High School in Rockford, WA.... the list goes on and on and on, whilst Stephon Clark was shot and killed by police in Sacrament for using his cellphone in his own back yard).
Yes there's a problem with black on black violence - as I've repeatedly said but you don't want to acknowledge - however there's a serious issue with endemic racism, police brutality and a shoot-first-if-they-are-black policy in the US that you don't seem to want to acknowledge. That's why people like Colin Kaepernick protest, and that's why you're passively enabling the situation to continue, by blindly ignoring the issue and enabling the status quo to continue.