Actor Jason Bateman and talk show host Chelsea Handler will also be among the celebrities in attendance to support Mayor Pete's 2020 presidential run.
The rule would "fundamentally eviscerate the right to territorial asylum in the United States," one advocate said.
Sadie Roberts-Joseph was found dead in the trunk of her own car Friday, Baton Rouge police said.
The office of professional responsibility is conducting the investigations into 62 current and eight former employees.
Sheryl Powell, 60, disappeared Friday while walking her dog at a campsite near the California-Nevada border. Both Powell and the dog were found alive.