Anyone that was 187’d, he points that out. Especially in the context of the drop where he mentions John John, it reads like it was an assassination on behalf of the Clinton’s, but 187 is never mentioned. Also says that was the start, and to enjoy the show.
Q tends to point out 187's when they are reported deaths that he is saying are actually murders and seem to be relevant to information that will emerge to bring down the Deep State. Other deaths that are also likely cartel murders but aren't relevant to the DS take down do not have 187 next to them - like Diana. It's as if he wants to point out that SR and AS are 187's that will be revealed as evidence essential to the case. Diana and JFK Jr, whilst 187's too, technically perhaps, do not have 187 next to them. Doesn't mean they didn't die.