My assumption would be he was in Portugal (or at least Europe) until 2017. I would assume that if you had been out of status for a significant period of time, you would be ineligible for the green card lottery.
I’ll note that the excerpt of the professor’s bio stated that he returned to Portugal to conduct research in 2009. It is possible they could have had a more recent interaction as well (though obviously he had a longstanding grudge against Brown, so no reason to think his grudge against the professor wasn’t equally longstanding).
I remain very curious about his life post-2017, but I know that generally speaking it can be difficult to get hired with foreign credentials, so it wouldn’t surprise me if he did struggle professionally in the US when he tried to make a go of it.
These facts (as we currently know them) remain odd to me:
1) Doing the mass shooting before the targeted shooting. For so many reasons.
2) It was a Saturday at 4 pm, and there is no reason to think that the scheduling of a study session was made public (and if it was, would he have intentionally chosen an economics class?). Even if you used to be a student there, and knowing that scheduling goes out the window during exams, still seems very odd to me to expect there to be people in that building at that time. Even if there were people there at 2 p.m., it’s still odd to assume there would be people there still at 4 p.m.
3) This last point is more speculation than fact, and probably just a matter of me trying to find reason in the irrational — but if you’re seeking to avenge a grudge, killing and injuring innocent students hardly seems like the way. If he felt he had been wronged or things were unjust, imagine how those injured students will feel for the rest of their lives? (And of course recognizing the lives that were lost). As someone else already noted, there are far more logical ways for the criminally-minded to symbolically destroy Brown.
The Reddit user’s involvement is fascinating to me. I’m a Redditor, and I have no negative opinions of Reddit or his decision to post the tip on Reddit. But there are two things that are almost amusing to me:
1) Except for the fact John was completely right, he comes off as the crazy one in that story. John determines that someone doesn’t belong in a Brown bathroom when John himself doesn’t belong there either? He starts following this guy around for blocks because of his clothes being inappropriate for the weather? I’ll do things like changing my mind about getting in my car if someone is nearby and concerning me. Maybe the story doesn’t translate well, or maybe John is just that perceptive, but in all events, I wish good things for him.
2) After the bad PR for a school that any school shooting is going to be, imagine being Brown and now on top of that, learning that a homeless Brown alum is getting so much press attention.