In Season 4 Episode 19, Hank's Bad Hair Day, Hank walks into work with bleached, spiked hair. Buck walks in a moment later and sees him, saying:
Good God Hank, you look like that fella that killed that other fella!
What does this mean? I have searched but between Reddit, KotH forums, and (cringe) Yahoo Answers, there doesn't seem to be a clear consensus. Buck is notoriously ridiculous with his euphemisms and and pop culture references, so I've even looked for a bleached, spikey haired female murderer, but I can't find anyone that makes sense.
Who is Buck saying Hank looks like?