Careless gawd damned drivers.
"I didn't see them" is NOT an excuse. It's an admission that I wasn't paying attention to the Friggin road.
Riding motorcycles as a kid I have respect for anyone that rides on on the street. I look both ways twice or three times to make sure I didn't miss something.
Sorry for the loss Bob. Losing a friend is always hard ..... Losing them to an accident because of a careless driver just plain sucks ass.
My condolences.