This is a wildly inaccurate assessment of the situation, and a thoroughly incorrect statement.
The organ and tissue concussion (not the same thing as a head concussion) and trauma from the close range gunshot wound that shredded her insides hastened her death, not the CPR.
Cops are taught BLS/ basic CPR procedures. They are taught to do CPR when there is an absence of a pulse. With damage so severe that cardiac arrest occurred almost immediately, there is literally nothing that the cops could have done by applying CPR to "hasten her death". In cardiac arrest from massive trauma, that patient is dead already.
There is nothing that can be done to keep blood circulating when organs and the circulatory system is effectively shredded and destroyed by the concussion of a close range GSW. The only possible exception might be a stab wound or GSW occurring in close proximity (like the parking lot of an ER) to a fully prepped and staffed trauma OR with a heart lung bypass machine primed and ready to go, and a very skilled trauma surgeon at the ready. (And as we are doing more off pump hearts nowadays, the availability of a primed bypass machine and available tech is rare.) And even then, the concussive trauma from a close range GSW that produced cardiac arrest at the scene is not survivable. The crushing of tissue from the concussive effects of the GSW mean that circulation cannot be re-established. Cardiac arrest at the scene from trauma has an abysmal survival rate, no matter the cause of the trauma.
The cops did *exactly* what they should have done after the victim was shot-- assess the victim and begin CPR immediately. It's not their job to determine if CPR is going to be "effective" or not.
She was pronounced dead at 11:51 if I recall, and the second 911 call was at 10:37. She was essentially dead at the scene, but because of the circumstances of the GSW, they rapidly transported and gave her every chance, IMO. And IIRC she went to Hennepin County Medical Center, which is a level one trauma center, and quite accustomed to dealing with GSWs and multi trauma (unfortunately).
It is not medically accurate, nor reasonable, nor fair, to criticize the cops for starting CPR, and state that they "hastened her death" by doing so. The fact is that the GSW killed her, not the CPR.