Hes going to do a Vince Foster... Self inflicted multiple gunshot wounds to the back of the head by a revolver held not by his dominan hand. Its a tricky way to commit suicide, but its usually very successful if one crosses the Clintoons or the Clintoon thugs.
The trickiest thing, after you shoot yourself in the head with your non-dominant hand, is to then roll yourself in a rug so you get carpet fibers all over your clothes, drive yourself to a park, unroll the rug and dispose of it, and then find a nice spot to lie down. And to get this right the first time without any practice. Well, Vince was apparently a talented guy.
The calibers of the gun and bullets will be different too.