I agree, they must have some “ smarts” to pull this off so far. Maybe Academic with a Double Life
1. Academic focus.
Some academics are content to mainly associate with other academics, lazar focused, posting technical papers, expert speaker in field. Maybe even functional autism ( formerly Asperger’s). I used to live in CA Bay Area, full of these people in tech. Yes, many are diagnosed.
2. Academic plus wholesome outside activities
Others may enjoy other activities outside of academia, such as being in a band, volunteering at homeless shelter, creating artwork, lots of interests that put them in contact with non academics.
Over time, they create outside interests, they like mixing with different types.
3. Double Life. Academic with a Dark Side
Then there may be Other academics, who may enjoy the dichotomy of being a lofty high achieving academic, with impeccable credentials, great image, and ALSO,
Living a Double Life, with sneaky interest in planning a crime, maybe a private porn addiction, lots of affairs, maybe some occasional substance abuse, dark side they keep well hidden. They visit TOR and dark web places for ideas.
Besides academia, they enjoy night life, bars, street life, anonymous street “ friends”. They pick up on street techniques and thinking. They think it may be clever to commit a crime, get away with it.
They try peeping Tom, exibitionism, small theft from homes, so far successful.
These small time crimes, give them a big ego boost, a big rush.
They think they are smart at work and with crimes, thus Double Life.
In the day, they clean up, go to a high level job, are back to their upper echelon appearance.
No one close to the perp knows about the dark side of the double life.
They may be isolated, live alone, or in a caretaker role for an old parent. They come across as quirky, but very nice to old Grandma. Most people don’t put 2 + 2 together.
Just some ideas.
JMO