I realize this news won't mean anything to most of you, but Hendricks was a unique guitarist, singer, and songwriter known primarily as the frontman of The Karl Hendricks Trio ("Fervently confessional indie rock in the vein of Superchunk, Pavement, and Dinosaur Jr. that combines spindly, wailing guitars with lyrics of heartbreak, dissonance, and disgust. " – Allmusic).
He also owned Pittsburgh record shop, Sound Cat.
I listened to him a bunch in the 90s and still think fondly of a a number of his tracks, like The Worst Coffee I've Ever Had from "Declare Your Weapons" or Somewhere a Weekend of Sin from "For a While It Was Funny".
His music may not be to your taste, but in my 20s I loved it. No one really wrote, sang, or played like Karl.