Holzwarth, then twenty-four, was a classically trained violinist who grew up studying music. She often played in public as a street performer in San Francisco and Palo Alto, where she was raised. When Pishevar ran into Holzwarth performing music in front of a candy store, he hired her to perform at a fundraiser for Cory Booker, held at Pishevar’s house, where she and Kalanick first met.
