Rockstar had already nuked the link I saw the leaked videos at earlier, but I found this:
No idea if it's going to be there in an hour or two. The relevant video is predictably the one called Nudist Town.
Content warning, somewhat sexually tinged violence
spoiler
The player goes around a nudist colony creepily looking at the people there with binoculars. An angered female NPC confronts him so he kills her and starts an impromptu mass shooting.
Looking at reactions, it looks like many people were genuinely put off by how realistic the scenario looked (wonky floating NPC physics not withstanding). I guess it hits different when livestreamed shootings are a common occurrence. Can't wait to see the Discourse and Content that this game will generate. Jack Thompson would have exploded if he had seen this clip in the 2000s