Tosca Musk - a sister is born
Tosca Musk was born in 1974. She went to school in Canada at the University of British Columbia, doing a BFA in Film Studies.
Tosca is a film producer (Musk Entertainment, Protocol Enertainment) and lives in LA with her 3 children. She has produced Simple Things (2007), The Heavy (2010) and Evilution (2008) (according to IMDB).
Notably, Tosca has been quoted as saying ' there is something different about our family. We risk more.' and reading this biographical account of Elon and his family, you can probably tell.