sheehy argued this.why would she dump the gun in the garage? >> use common sense! if you're smart enough to do all of that, then you're not gonna be dumb enough to stick it in the saddlebag! >> reporter: besides, he said, the towel the pistol was wrapped in? was unlike any other towel in the house. must have maybe belonged to somebody else? you get the picture. so then, back to the main question. how did bill stout end up with a bullet in his head? >> when i hired the pathologist i had, that's when i thought, "maybe we have a shot." >> reporter: maybe you have a shot how? >> that he committed suicide. >> reporter: you think there's a chance he actually did commit suicide? >> yep. >> reporter: all kinds of reasons, said defense attorney sheehy. bill was underwater on his mortgage, couldn't pay his bills, was facing tax liens. >> my pathologist demonstrated to a jury how you could put the gun behind the back of your head and he testified that he had had prior autopsies where people had done that. >> report

and michael sheehy is behind this step back into pinball history. >> first machine to get the patents on a spring loaded plunger and the bell to make the sound when you make points. that's where you get the name pinball is because of the pins and the ball that you're shooting. >> then it sort of evolved here? >> yeah. they put glass on it and a coin chute. this was the first one that was manufactured in the '30s. that was from 1869, and then that's the one that started, gottlieb. this launched bally casinos. this is the machine that started the whole bally empire. >> reporter: pinball has a colorful past and was actually banned for almost 40 years from the early 1940s until 1976. the u.s. government felt it was a form of gambling. so what's in this room here? >> this room here is all the electromechanicals from the '60s and '50s and 40s. the first game that has flippers is right up here. the first multi-player game. these are wood rails, so these are the first games to have flippers. then the first game to have flippers is this one here. it's got six of them. there's three on each sid