Maybe you've stumbled across the whokilledlenorajohnson.com website in Grand Theft Auto V.
The site is filled with fake newspaper stories and a trail of breadcrumbs that lead players to an in-game murder mystery. The murder surrounding Lenora Johnson, a fictional actress killed during the golden age of Vinewood cinema, is based on the very real and very famous Black Dahlia case in 1940s Hollywood.
On one page of the site, players are directed to another murder in Los Santos. The murder of Jolene Cranley Evans is strewn with clues on where to find Evans' ghost on Mount Gordo. At 11pm, players will find a ghost in the distance and she looks like that terrifying ghoul up there. She disappears just after midnight.