Just to clarify- I'm far from justifying either officers actions.
The fast cop went through one intersection and is 1/2 way to reaching the next intersection where the wreak happened. Those look like average blocks so say 100 yards, so the cop was 50 yards away when they entered the intersection/started their turn? I have to think most could tell if a car is flying within that distance? If I couldn't tell if they were flying or not then I'd wait.
I am using wreak vs accident because I don't view this as an accident. I'm just pointing out that even if/with the cop being in the wrong I think the teens shouldn't have attempted the turn at that time in the first place..
Again- just conversation. I'm taking this as a conversational thread vs a condolences thread an apologize if offense it taken..