How location sharing helped police catch a serial rapist-turned-killer

The mother of murdered model Christy Giles pleads for others to share their locations. She says the technology helped police catch David Pearce, who murdered Giles and her friend, architect Hilda Marcela Cabrales.

source https://www.cbsnews.com/news/christy-giles-hilda-marcela-cabrales-david-pearce-los-angeles-double-homicide-serial-rapist/