Geez, very sorry to hear this. Met Zerg(as I originally knew him on Carby) around 2012 or so, during Abyssea. As I recall, Torzak, him, and me were in the same linkshell and while he got a lot of hate from different people(I confess I got frustrated with him a few times myself), he just kept on trucking, trying to get stuff done, not just for himself, but others too, always with the same line, "It's just a game lol".
Haven't really spoken with him much since leaving that LS years ago, but all the things Ahmed said about how he helped LS members and other people with clears sounds exactly like him. And a lot of times when he threw something together, yeah he'd fail. But he always laughed it off, never allowed it to bother him, and just tried again, using the jobs that people had, not just what was most efficient, always wanting to give everybody a chance to enjoy the content the game had to offer.
He went the distance to get me a few of the harder to get Atmas(back then) and even put more then his fair share into helping me get Kannagi, my first REMA back then(and if you read this Zerg, it's 119v3 and while it's not best-in-slot, I proudly refuse to replace it, so thank you).
Prays are going out to him, his son, and his family in general to get them through these hard times, and I look forward to seeing him online again when he gets this beaten(because if the haters couldn't stop him, I doubt this will, he'll keep on trucking).