The Murder: Wood chipper machine. Who: Carl Showalter. By Whom: Gaear Grimsrud. Motive: Disposing of a body. What Makes It Insane? The Coen Brothers presented the random murders and the final wood chipping scene with a certain dark humor, which made it all the more nuts. When Carl and Gaear find $1 million, they decide to take it. When get into an argument, Gaear kills Carl with an axe and Gaear's stuffing Carl into the wood chipper was purely because he needed to get rid of the body.