I find it shocking--but given the poster history, not surprising--that you would find that it is justifiable for someone to murder someone for slashing their tires. As long as the shooter was a (white)cop and not a black person of any age or gender.
A 17 year old jacked up on PCP holding a knife is a serious threat. Apparently he was shot from a distance of only 15 feet which somebody can cover in no time at all, even without a stimulant like PCP.
Even if the shooting was not justified I really do not see where the DA gets "1st degree murder" charge from, as opposed to manslaughter. Other than to appease the BLMers of course.