February 6, 2019 5:27 pm SNF Eagles Bears Footage shows towering flames in San Francisco as crews battle a fire caused by a gas explosion. US & World Videos 2:44 Elementary school student killed in house fire in Middlefield: school officials 2:08 Jennifer Lopez stuns at first red carpet after Ben Affleck split 1:17 Searchers recover bodies of both men missing since boat crash off Old Saybrook 0:58 Rare 1787 copy of US Constitution is up for auction and it could be worth millions 0:52 What is the Guardian Cap on football helmets?