Sometimes I wish stories like this would mention whether headphones were in use -- not because I want to malign the deceased or even assign blame, but because increased awareness of the problem might do some good.
Regardless, it's very sad.
I hate headphones and grumble at people who wear them - but if I saw an 80+ year old exercising on the trail wearing them, I'd reverse myself and probably think "you go, girl!"
My photoblog http://dragons-fly-peacefully.blogspot.com/
Bacchetta Giro (recumbent commuter)
Bacchetta Corsa (recumbent "fast" bike)
Greespeed X3 (recumbent "just for fun" trike)
Strada Velomobile
I will never buy another bike!