steve avato was also an agent with the bureau of alcohol, tobacco and firearms. >> he had been a philadelphiarior to going to the atf. so he was not somebody just out of the academy. he had been someone involved in police work for a number of years. >> the atf took no part in this investigation, but personally, avato was dumbfounded when he learned that paul camiolo had been charged with arson. to him it just didn't make sense. >> that finding shocked me. i hadn't anticipated that. it seemed very difficult to explain how the gasoline would be in hardwood floor but not in carpeting and padding above it if a significant volume of gasoline was poured. >> and avato wasn't the least bit suspicious of paul's behavior on the night of the fire. >> it's not unusual for people in a fire to exit a building through the way that they're most comfortable exiting. if they typically come and go through the front door, no matter where they are in the house, they'll exit through the front door. >> avato told local investigators that he believed the fire was accidental, and he was roundly dismissed. >> they por

tobacco. that answers that question we had about, steve, what's coming off the shelves. including the chew and all that other stuff. all that coming off starting october 1st. more about this bold move, what it cost for the drugstore chain, what everybody else is going to do about it. we're going to do that next. i want to know -- that means they're going to take candy and alcohol off, too. we'll see about that when we come back. >>> cast your vote today for the most influential business leaders of the last quarter century. go to cnbc.com/25. make your picks from our list and submit your vote. you could even write in your own. who will be the cnbc first 25? vote today. >>> where do we go now, guys? are we going to go -- >> we're going to talk puerto rico. >> we're going to keep reading. s&p cutting its credit rating on puerto rico to junk status. the agency cites concerns about the cash-strapped u.s. territories' ability to access capital markets. the call makes it harder for the caribbean market to borrow in the $3.7 trillion municipal bond market. the territory has been