Podcast:48 Hours Published On: Sun Nov 07 2021 Description: A 15-year-old girl beaten to death with a golf club in a wealthy Connecticut neighborhood. Does her diary hold clues to the killer? 48 Hours" correspondent Erin Moriarty reports.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.