The cops themselves say they were after the car for "A TRAFFIC INFRACTION." You can make up any story you think will justify 7 deaths, but the facts, as stated by the cops, are these people died because the city wanted the fine money.
Back before my cousins retired from the State Police they used to say there was no excuse for most high speed chases because the bad guys couldn't out run the radio.
My opinion, too
Cop sees car/truck speeding (traffic infraction). Cop turns on light and siren. Car/truck speeds up to flee being stopped. You are an idiot if you think the cop should go get a donut!