I've been to bed and had a night's sleep since reading this news. I have so many thoughts, don't really know where to start. So rather than subjecting F12 to my stream of consciousness, I'll make this point and a single share.
BJJ Scout was for a while considered the best channel on BJJ technique, analysis, etc. No less it was maybe a fellow F12er, @TrumpetDan we have our suspicions. That channel has analysis and synthesis of just 10 fighters, and just 6 BJJ athletes. And the first one is of Lo. At mid blue I benefitted a LOT from those breakdowns. I never met Leandro but his game managed to affect my game. Anyway, just a share of that playlist. All the other thoughts and emotions are fucking raw. This shit is insane.
I think that that's a lot of us. We still refer to a lot of that stuff as "The Leandro Lo <xyz tech>"
I remember the active posting from that video.