The founder of the Louisiana African American Museum found dead in the trunk of a car

A 75-year-old Louisiana woman, founder of an African-American history museum, was found dead in the trunk of a car on Friday afternoon, Baton Rouge police said .

Sadie Roberts-Joseph has not been identified yet, Sgt Police Baton Rouge said Jean McKneely.

"Our detectives are working diligently to bring to justice the person or persons responsible for this heinous act," the Baton Rouge Police Department said in a statement released by Facebook on Saturday.

Roberts-Joseph founded in 2001 the African-American history museum Odell S. Williams, now known as the African-American History Museum of Baton Rouge, according to Lt.-Col. lawyer. The museum is part of the New St. Luke Baptist Church campus on South Boulevard, where his brother is a pastor, reported the outlet.

The website of the city visitor's office indicates that the museum has exhibits on African art, cotton culture, black inventors and a bus dating back to 1953 from the boycott period of civil rights in Baton Rouge, among other things.

The Baton Rouge police lamented the loss of Roberts-Joseph in his Facebook post, describing it as a "treasure" for the community. "

"Mrs. Sadie was a tireless advocate for peace in the community," said the Baton Rouge Police Department, adding that he had had the opportunity to work with Roberts-Joseph "on many levels" .

"From her gift of cycling to the African American Museum to her collaboration with the organization she founded, called the CADAV (Community Against Drugs and Violence), Mrs. Sadie is a treasure for our community", whose the loss will be felt in the community, "said the department.

The state's representative, C. Denise Marcelle, said in a Facebook article that Roberts-Joseph had sensitized to African-American history.

"She never bothered anyone, she just wanted to expand her African American museum downtown," wrote Marcelle. "I loved working with her and I am saddened by her death."