Crazy Wolfgang

Crazy Wolfgang is an eccentric Caravan Merchant specializing in the sale of... junk. His inventory includes random bits and pieces used for constructing weapons, and also a copy of a Schematics for a Rock-It Launcher. He can repair up to 15%, but after talking to Uncle Roe for further Caravan Merchant investment, his repair skill jumps to a maximum of 75, the highest in the game. Crazy Wolfgang can sometimes be found just outside Megaton and any other place Caravan Merchant stops.

If you resurrect Wolfgang after the investment, he will still have the expanded inventory but not the improved repair skill. Uncle Roe will still consider the merchant dead in his conversation with you.