This is an example of arrest being a symptom of death, not the cause. The cause was being shot many times in vital areas. Arrest protocols are worthless when you are exsanguinated, and/or lungs are shot through.
If we remember the great video shared by one of our members earlier this year, the cause of death (arrest if you will) of nearly all GSW subjects is bleeding. Maybe shot directly to the heart or the head might be different, and a usually less-than-lethal wound might precipitate shock, but usually its loss of blood. CPR, AED will not reverse nor address this.
In order to successfully treat shock you must restore delivery of O2 and mitigate the inflammatory response. (Which is where the game really begins)
The systemic inflammatory response is directly connected to the coagulation cascades, the kininogen cascades, and all of their respective mediating cascades. (like antiinflamatory and anticoagulation)
Additionally inflammation not only reacts to injured/dead tissue, it injures and kills healthy tissue.
Furthermore, it sets off an endocrine response and changes the body's metabolism.
Like I mentioned in the other post. Circa 1600s medicine (focused on O2 delivery only) will not save multisystem trauma patients. (or any patients in profound shock for that matter) That was pointed out as far back as a review of literature in the 1850s.