>> drive 21.5 hours within a 24-hour period? >> that would be highly improbable. >> so the reason why ed ates can't be behind the wheel powered by adrenaline fleeing the scene is what? >> he would fall asleep. powered by adrenaline keeps you awake four hours? five hours, six hours, then you have a crash. but adrenaline can't run 24 hours. >> the defense was telling the jury it had been presented no direct evidence to tie ed ates to the murder of his former son-in-law, and medically there was no easterly way he could have done it. and yet there was all that circumstantial evidence still to explain away, that odd trip to pennsylvania and new jersey the week before the murder, the dam ning computer searches, and there was only one person left who could do that. coming up, ed ates takes the stand in his own defense. >> had you murdered paul dunk sack in cold blood, isn't that the truth? >> no, sir, that is not true. >> would his story convince a jury? when "too fat to kill" continues. going to the bank without going to the bank... that's a step forward.