It's perfectly plausible drug-dealing scumbag Freddie caused his own injuries after ingesting heroin and fling himself off the walls of the van.
They took 45 min to go 4 blocks. They admit they did not strap him in. They admit he arrived injured. They admit he did not get treatment. He admit he died.. The police already admit their actions and inactions. Now only question was whether any of these were intentional and whether all six are guilty or just one or a couple.