Really tragic. A lot of those guys should be lining up for our club's RR in a couple of weeks. It's shocking, but also makes you realise this kind of thing is incredibly rare.
A lot of speculation and even accounts from riders in the bunch about what happened. Anybody who's had any involvement at all with road racing will know how often riders cross the central line while riding at great speed despite the warnings of organisers and commissaires, sadly this seems to have been a factor in this case.