The participants of the attempted surgery and recussitation go immediately and write in their own hand (or dictate) the events as they unfolded. Then if they get together at a later date to collude and each get their stories straight, they have committed a crime and a tort.
This is what happened. The police clearly know what was done was nothing less than murder. They are closing ranks, to create an illusion and lie to have those in authority accept a fiction to be the final record. It is disgusting.