Notorious B.I.G.'s legacy; 'Riverman' details disappearance of canoeist Dick Conant

Christopher Wallace, better known as the Notorious B.I.G, would have turned 50 over the weekend. Justin Tinsley, author of "It Was All a Dream," recalls Biggie's friendship-turned-rivalry with Tupac and his mark on the world of hip-hop. And, New Yorker writer Ben McGrath talks about his book "Riverman: An American Odyssey." The book explores the life of Dick Conant, who continually canoed rivers across America before mysteriously disappearing in 2014.