He can't believe it! He took that horrible shambling thing down! Well, helped take it down. Point is, it's down, it's dead!
And there were probably more inside.
"I changed my mind, burning down the entire house and forgetting about the whole thing is completely ethical." John stammered, fumbling with trying to reload his gun. He's too nervous, it wasn't happening. He took in a sharp breath and second guessed himself. "But if not that we need to go in and clear it out. I've already fired my gun, I need to reload or fight melee. I'll... I'll support, someone else go first."