You don't need to ask your manager, why not go to HR and stress that this is a sensitive topic you don't want making back to your team? No guarantee they'll honor your privacy, but I'd say it's worth a shot.
Find a trusted friend in the company who is a survivor and ask them. Survivors have strong information networks for office politics and know such info.
HR is there to protect the company. Sometimes that aligns with protecting the employee but when shit hits the fan ask yourself does HR work for you or for the company?
I know I sound a bit 'down' saying that but it is an unfortunate reality that companies are not very loyal to their employees when times get tough.