police dog trained to alert to the faintest whiff of an arson? she alerted to paul s clothes. suspicious, yes. but not exactly ironclad evidence. as you will see, courtesy of paul s high profile defense attorney. the man famous for defending scott peterson. his name, mark geragos. i had many a client who i have no doubt was capable of the acts that they were accused of. this is not one of them. coming up, in the last hours of jennifer s life, something was caught on camera. does it prove paul is not guilty? anybody who watches it will never have the impression this was somebody who was ready to kill her. when dateline continues.