Hosted by Jane Pauley. In our cover story, Steve Hartman and photographer Lou Bopp document the bedrooms of children who have died in school shootings, reflecting the lives lost. Also: Tracy Smith talks with former President Bill Clinton about life after the White House; Anthony Mason sits down with Cher to discuss the singer’s new memoir; Seth Doane interviews Irish actor Paul Mescal, star of the epic “Gladiator II”; Luke Burbank profiles conservationist and documentary filmmaker Eric Goode, creator of "Tiger King" and "Chimp Crazy”; Robert Costa talks with Wall Street Journal columnist Peggy Noonan; and Lesley Stahl finds out why patients with Parkinson’s Disease are utilizing a unique form of therapy: rock climbing.