BBM
also Big Chris had people dropping by a lot of the times during a day or evening
That fits in with Chris and Gary being the only two bodies to be moved to a back bedroom. An attempt to conceal those two bodies told LE they were the first two killed I think. The W's couldn't risk someone dropping by unannounced before they finished their killing spree and seeing bodies lying around. That would have put a major kink in their plan if Chris and Gary were discovered too early and LE called out. My opinion only. Why else make the attempt to conceal those two but none of the others? Because Chris had people dropping by all the time, bringing cars for him to work on, buying weed, and don't forget his teenage son who probably had friends in and out all the time. My son did anyway and I assume teenagers are all alike everywhere. I think George killed Gary when things got out of hand at Chris's and it took Billy and Jake both to kill Chris. No link, my opinion and thoughts only.
I don't buy that Kenny was the only one to know about the fight or custody battle given that Kendra was very close to Hanna and was with her earlier that day, fishing. Dana was close enough to her SIL April that she talked to her on SM that night after she got home from work to tell her she was home. Tony had talked to Chris on the phone about a faucet around 11 PM according to his interview with a reporter (Those kids are all we have left I think was the article). I think they were all a very close family who spoke or saw each other every day. Lenny was close enough to his ex SIL that he did work for Chris when he needed him to. And don't forget BJM who went to Chris's every day and even cleaned house for Kenny. No, that custody battle and fight between Chris and Billy was no secret in the M/R families or in the Gilly family given that Jake was claiming baby KR was his. You can bet your boots Hannah and Frankie told Charlie all about that.
That Kenny getting revenge thing doesn't even make sense given there were plenty more R's left alive to get revenge. Some sleeping not 500 feet away.
The only thing that makes sense is Kenny saw the vehicle the W's bought for the killing spree that night at or near one of the murder scenes, probably dropping Gary off. He probably didn't recognize who's vehicle it was but that didn't matter to the W's. No way they were going to let Kenny live to tell LE about any vehicle he saw that could be traced back to the W's.
JMO