Idk. I swear this is going to sound weird, but, (then again, what's new in this case
), I think the techie could be GW4. I only base this, for the most part, on what he calls his child. I know that's not much, but, that name, is not a common name. In all of my research, I have found it one other time, and it was prior to 1923, in Denmark, and I'm not so sure it wasn't a typo in the database (it was supposed to be an e, as the 2nd letter, instead of a u).
If you look up the child's name, in the Urban Dictionary you will find the definition, and there is also a WOW character with that name. FWIW, the child's mother called him by a different name, while carrying him. So B may not be his legal name.
Back to tech skills; I have avid gamers in my family, and am in the tech field myself, and avid gamers usually have some pretty decent tech skills. GW4 may not be a gamer, and may not be a techie, at all, it's just a theory of mine, based mostly on the name, but when it came out that he was most inclined toward revenge on LE, it made me think a little harder on the possibility.
Sorry for the book, it's just kinda hard to explain, without providing the name and the definition along with WOW links.