I'll probably piss of Irredeemable again with my cynicism, but these attacks are really starting to edge into the land of absurdity. Very few trojans can infect entire networks due to modern OS's requiring admin privs, so unless you have a home full of windows xp machines you should be okay.
There's also the possibility of local attacks, but that would mean that either Deem had A: WEP 'security' or he used TKIP and some neighbor decrypted his password using a 1080/ti. And even then, you really are just spying on traffic that isn't HTTPS. Which means your neighbor is simply pretending to be the NSA.....
I'm not going to accuse anyone of lying here, there's definitely the chance that some neighbor got pissed off that he can't drug someone anymore in a game, but that's probably 0.001% of a chance. But in the end, it's not so simple to hack someone's network, even if you have their ip addess, which is your public ip address btw and not your private ip addresses which actually are the ip addresses your local network uses. Usually people develop sophisticated trojans and have people either download them or install them from usb drives.
Also, multiple pcs were bricked. How the hell does that even happen? Esp. when we're talking trojans that are meant for hijacking networks, not viruses that screw up your bios. How do you hijack a network if you brick a pc? What's the point? It's like blowing up a country you want to take over. Usually trojans behave in the same manner for all devices they are compatible with.
Assuming this happened, somebody downloaded something from the internet they shouldn't have in a house full of windows xp machines, and then somehow got everything up and safe in a matter of days with a bunch of new copies of windows 7/10. I suppose it could also have been a router virus, but usually those just change your dns to a criminals dns.