In December of 2010, four bodies were discovered in Gilgo Beach, Long Island. Nearly 13 years later, police now say they’ve identified the killer.  Though the victims’ family members are relieved, they’re also left wondering what took so long. Guest: Robert Kolker, author of Lost Girls. If you enjoy this show, please consider signing up for Slate Plus. Slate Plus members get benefits like zero ads on any Slate podcast, bonus episodes of shows like Slow Burn and Dear Prudence—and you’ll be supporting the work we do here on What Next. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices