Oh, that IS sad news! Normally, I would say that 84 wasn't a bad age, but that is a horrible way to go.
I was thinking about him just the other day and wondering how he was. It has been a few years since he (was?) retired from commentating for Eurosport.
I know quite a few people who didn't like his meandering and excitable commentaries, but I rather liked his style. I used to get a colleague to record the cycling for me until I got a satellite system of my own.
I wrote a little tribute to him 3 years ago -
HERE.