The news seems to have broken for cyclechat on the pro cycling Tour de France thread following Chris' tweet. See the last 3 or so pages and also the Carol Boardman thread.Not sure if this has been posted elsewhere on the forum, but Chris Boardman's Mum was hit by a car whilst cycling today. Sadly she died.
http://www.bbc.co.uk/news/uk-wales-north-east-wales-36819791
A url that finally says what happened:
http://www.bikebiz.com/news/read/carol-boardman-killed-while-cycling-by-a-motorist/019830