Scot Halpin passed away at his home in Indiana last Saturday at age 54.
You likely don't know the name Scott Halpin, and no one would fault you for it. Halpin was the "Scot" who got his 15 minutes of fame in November of 1973, when he sat behind the drums and played three songs with The Who at the Cow Palace in San Francisco. Keith Moon had passed out from an overdose of horse tranquilizers, which led Pete Townshend to ask the infamous question, "Can anybody play the drums?". A 19-year-old kid who had just moved to the bay area from Iowa answered the call.
The wiki article on Halpin is here.
Here is video from the concert: