"48 Hours" correspondents Anne-Marie Green and Natalie Morales discuss the "Joe Hunter's Mission" investigation on Post Mortem, in which "Survivor" contestant Joe Hunter raises awareness about his sister, Joanna, who was found dead in her California home in 2011.
Former two-time heavyweight champion Anthony Joshua defeated YouTuber-turned-fighter Jake Paul by knockout in the sixth round of their much-anticipated bout at the Kaseya Center in Miami late Friday night.
Information from a tipster who posted on Reddit about a strange encounter with another man was key in cracking the Brown University and MIT shootings cases, police say.