You've probably seen it: A stock photo of a white-haired old man in a plain red turtleneck with the words "guess I'll die" scrawled across his chest. But the story of how Mike Baldwin, a 76-year-old retired chemistry and biochemistry professor, actually became the internet's preeminent expression of fatalism has remained a mystery. As it turns out, an ailing artist's late-life career shift collided with an Atlanta man's frustration over healthcare costs, resulting in a meme about dying that found life online.