Alastor and Adam were fighting on the rooftop of the hazbin hotel. Adam raised his weapon as he yelled

Adam: "Radio is f*cking dead!?"

Adam slashed at Alastor, breaking his cane. Alastor was surprised at this and it distracted him

Alastor: "Wait what just happened? Ffffuck-"

Adam then slashed at Alastor again while he was distracted, and landed a hit on Alastor. Alastor went flying back into the side of the rooftop. He slide down the side, with a giant slash wound across his chest