@ MIKAYOYO. Honestly, I don't know how premeditated it might have been. Originally I though it was a crime of opportunity. But from his interviews and what we've learned recently I do believe he is a predator. In this case, probably a predator on the lookout for an opportunity. I won't bore anyone with all the "what ifs" I can imagine, but I am thinking he may have had an interest in Christina before the party.
I get it. I was just curious if you thought premeditated way in advance with CM is the target or just premeditated in that he had his eyes on SA'ing anyone he found himself in a position to.
With regards to him having eyes for her specifically, I wonder why her in the sense that did he see her often or how was she in his head to want to harm her? YKWIM? Has he been pining for her since HS since she didn't hang with this group of friends that often?