1. Really not willing to wade through this one too deep. Done it enough times to get depressed by the very thought.
2. That said, I am somewhat loath to get overly analytical regarding a hand-to-hand altercation that looks like such a goat rodeo. Training, policy, whatever, in a scrum like that is going to be neither Marquis of Queensbury nor 100% IAW policy when some LEOs, who might not ought to be on the street are holding on. Veteran LEOs at several times the salary in the USA just are not up to maintaining ROE the way E-1s just out of high school manage to do in places like Iraq & Afghanistan.
3. Arresting someone for selling individual cigarettes? Really?
4. The simple fact that LEOs are willing to throw down and arrest folk for such a chicken-*expletive deleted*it infraction on nobody's safety, liberty, or property is the much greater condemnation of the individual LEOs involved than screwing the pooch and killing the misdemeanor-er with a choke hold. If LEOs are willing to arrest and kill citizens to keep folk from selling single cigarettes, they will be willing to kill citizens for any reason, no matter how minor, unjust, or unconstitutional. Really ought to keep a database of such folk to keep an eye on them.