This is really sad!
I'd never heard his speakers, but Roy contributed a lot of great info in this forum and elsewhere, for us non-speaker-designers.
In fact I'd just this week read an article (in positive feedback, I think) from a speaker designer who listed Wilson speakers as being "time aligned."I rolled my eyes but was happy to see that Roy had shown up to clear the cobwebs about time/phase alignment and Wilson speakers.
Anyway, sorry to hear of his passing. I"m sure he left a lot of happy people in this world, listening to his speakers.