It was late on a summer night when 21-year-old model Ava Roosevelt found herself driving to the Cielo Drive home of her close friend Sharon Tate.

She had planned to join the actress and a group of friends for a nightcap. But as she was traveling uphill, a short distance from Tate’s home, the fuel light suddenly started flickering on the dashboard of her aging and increasingly unreliable 1955 Rolls-Royce Silver Dawn. Her gas tank was almost empty.