Beyond the officer's record (which seems to have not been great), the idea that he knew Floyd from off-hours security jobs probably bears some digging.
Meanwhile, after a few nights of looting and having a friend assaulted by teenage gangs we are least seem to have settled into a pattern of hundreds/thousands of people walking together, ignoring social distancing (anti-science!) and holding-out for change. I don't know if "defund the police" is the change we need versus "ban public employee unions FFS" but it's progress.