It is and a couple other things about KR's murder.
The one shot to the head suggests the W's were maybe thinking to frame KR? Did they kill him first then use his gun to kill the others? We know though that GR was killed with a multiple caliber via his Dad talking about it, (someone just recently posted that video), so using his gun doesn't really make sense unless GR was the random they weren't planning on being there and he messed up their plan of using just KR's gun?
We don't know everything about the CRSR and BW fight incident except it happened very close in timeline to the murders. Was BW alone or was GW4 with him when the fight occured? I think KR would have definitely been filled in as to what occured by his brother and cousin GR, even TR if the fight happened at BBL
I think KR would have been very on guard if certain W's showed up to his trailer. If GW4 was friendly to KR...maybe...his guard would be lowered enough to take advantage?
But then KR's dog is another aspect that doesn't fit with a surprise attack that early in the morning. He would have, I'm thinking, been inside in the wee hours and warned of anyone outside. Remember KR's best buddy BH, according to his mother (FB post I believe was posted with that info), went and honked for him to ride to work and there was no response. That was pretty early, 4:30-5:00 ish most likely because they had a long drive to go to the city for work. So KR had to have been killed earlier than that?
Maybe it was just GW4 going to kill KR? Just because your brother had fistcuffs with his father or his brother was harassing your neice for custody, you might not hold that against the other son who was pleasant to you?
Maybe the reason why KR2 couldn't find her Dad's gun was because LE had taken it as evidence? Dewine came back fairly quickly, IIRC, that KR was not a suicide. Maybe holding that gun helps prove that or some of the other murders?
It's possible the W's didn't plan on killing all the R's that night? Just some thoughts.
I can see a situation where GR and KR were not planned to be killed but something changed as things progressed. Those two were the least likely to be a problem with JW getting custody with the others out of the picture. We don’t know the original plan or what all changed as the night went on...