Another interpretation: In the first and second picture, The Guy is getting into position to see clearly what the officer is doing to a girl sitting on the ground in a bright neon pink/orange bikini. In the second and third photo, another girl, who is standing, in the grey and white shirt, is whacking The Guy in the butt with her aqua blue towel and he's reacting by reaching around to his butt area to grab and stop the towel from stinging his nads again. Note also in the photos that the large dude in a beige t shirt is moving to straddle the sitting girl in pink bikini, finally A-framing her head and shoulders with his thighs...and nads likely resting on her head. I'm trying to be humorous btw, but I think the pics have a wealth of displayed behaviors depicted in them, and that the people are all reacting to escalating tensions in very individual ways.
When I saw the video clip, short version just prior to and after the cop drew his weapon...and ran around like an untrained and enraged collie chasing panicky sheep, it just struck me as another example of why we train our police wrong. The "Take Command" approach using command voice (loud drill sergeant voice) just escalates tensions and transforms a group of annoyed civilians to scared and angry and unpredictable, and the cops themselves are affected by that panic, too. Hence so many shooting incidents.