In 1984, German food engineer Günther Stoll wrote six cryptic letters “YOGTZE” on a piece of paper before abruptly fleeing his home in the middle of the night. Hours later, he was found fatally injured in someone else’s crashed car, naked and barely conscious. The mystery? No one knows how he got there, who he was with, or what “YOGTZE” meant. In Episode 4 of Threads of Truth, we examine Stoll’s final hours, the bizarre clues he left behind, and the theories that haunt online forums to this day, from Cold War paranoia to food industry conspiracies. Was it madness, or murder?