Sorry to hear about your friend Don, Lane Splitting is legal here, but only at slow speeds. That doesn't stop the peanuts from roaring up between cars at stupid speeds, very early one morning I had a guy on a big Jap sports bike frighten the crap out of me when he blasted my door, inches from my mirror, at probably 100 MPH in a 35 zone, it was like a gun going off, but somehow he kept going and disappeared into the darkness.
Not so lucky was a one percenter on a Harley. Traffic on the "Ring Road" was pretty congested one morning, but it didn't stop him from blasting past me on his hog. Shortly afterwards the traffic slowed to a crawl, and as I came around a bend in the road I saw his bike on it's side stand, but he was laying on his back, and as the cops and ambulance hadn't yet arrived, one of the car drivers was draping a blanket over his body.
I thought I was bullet proof when I was young too, but I was lucky, lots of broken bones, but still breathing unassisted. Cheers, Terry.