ACTIVIST and African-American museum founder Sadie Roberts-Joseph was found dead in the boot of a car on Friday.

It is not clear what caused the 75-year-old’s death or what led the police to find her body three-and-half miles from her home in Baton Rouge, Louisiana.

Ms Roberts-Joseph was a tireless advocate of peace in the community. Alongside the museum that she opened in 2001, she started Community Against Drugs and Violence, a not-for-profit organisation focused on creating a safer environment for children in North Baton Rouge.