She does know what she is talking about. I have an emergency medical background myself and in patients with multiple or large puncture wounds CPR is not going to achieve much and could possibly exacerbate blood loss. Priority #1 is to control the bleeding IMO
But, why were they even trying to save her life is my question? In the numerous other killings by cop we have seen over the past few years the cops leave them bleeding on the ground and usually handcuff them. The posters who usually take the side of the cop always tell us that is protocol and they are not allowed to offer any life saving measures.
Strange, I know!