An accident claim has been posted by the attorney (Richard Duquette) for one of the riders, including pictures of the accident location and screen shots from the on-board video from the bus (I caution the stills from the bus can be rather haunting....)
http://www.911law.com/documents/Pret...r_Redacted.pdf
Road is narrow in this location, constrained by guardrails on either side. Contrary to the NCTD claims that it was a sideswipe accident, the report says the impact zone is the FRONT of the bus, meaning the driver made no attempt to avoid the riders and plowed straight into them from behind.
EDIT: for anyone that knew Udo Heinz, there will be a memorial service tomorrow (Thurs) Aug 15 at Powerhouse Park in Del Mar