True, but again the FBI's definition of 'targeted' specifically says that it has only observed killings like this when they were carefully calculated and meticulously planned. Not the kind of impulse crime that an externalized impulsive rage killer tends to perpetrate when he's been slighted by a specific person. This was an internalized, longstanding, lingering, insatiable bloodlust from the depths of a shallow soul, IMO, and was perpetrated to fulfill a fantasy that most probably had no bearing on the identity of the victims themselves.
My opinion.
Oh, I totally agree. I'm only saying that an introverted, planning sadist can ALSO be an incel, or a doctor, or a truck driver, or a lawyer, or a student or anyone else. These are not exclusive categories.
I do not think this is an impulsive rage killer, exactly (although again, you can have people who are great planners also fly off into rages - it's actually a scary personality blend, IMO).
I totally agree that this was planned - and my own word would be...meticulously planned. Researched on the internet. Telegraphed to others in only the most hidden ways - a challenge to people around him, "See who I am? You don't even look at me - you don't see who I am!"
Internalized, longstanding, lingering - YES. A grievance collector who decided that he was eventually going to lose it and commit some bloody crime - so he spent the last year or so planning it very well.
This argues for a long refractory period, as seen with other killers. Eventually (maybe), the rage will rise again - right now, he's just very concerned with executing this plan and not getting caught.
As to whether his quest had to do with the identity of the victims or not - I go back and forth.
You are describing (and I totally agree) a really disturbed and relatively rare individual. It's hard to believe that this rando rage sadist could be in the inner circle of the victims, but he's somewhere - lurking around some people, somewhere. He doesn't live in a tent. He has internet, I'm convinced of it. He stalked them online, most likely. It's possible he's from out of state - and that something in their profiles/backgrounds/follower base...caught his attention. When people permit strangers from around the nation to share in their Instagram world (esp if there are DM's), all of a sudden, many people are now involved with convos with...bad actors. Something either drew this killer to Moscow (if he didn't already live there) or he's a sadist crazy killer who is a local of some kind (not necessarily born there of course).
These days, there are a lot of people who think it's funny to flip people off or stand up to them verbally in public - people in general are less demure than in the past (MOO, but based on available research). The easily offended sadistic grievance collector is rare - but they are out there. This guy needs to be caught.
Not sure of whether we can discuss actual theories about a serial killer thoroughly at this point.