In reply to Removed User: This is really sad news. Unfortunately many have feared such an incident was only a matter of time. Rolling road closures only apply for UCI and National A category races. In all other races marshals only have the power to warn oncoming traffic.
Having raced a lot in many races at national B level, I have seen many near misses, in some cases this was due to riders attacking on the wrong side of the road on blind bends, on others simply, narrow roads and unwary drivers and sometimes just down right aggressive driving. Though of course I do not presume to know the circumstances of this incident.
Sincere condolences to the family and friends of the fallen cyclist.