If an employee’s loved one dies, can he use FMLA leave to settle estate affairs?

Q. One of our employees has been out on FMLA leave for seven weeks taking care of his sick mother in another state. We approved a full 12 weeks of leave. I received a voice mail from him saying that his mother died. He also said that he had to clear up a lot of things with his mother’s estate, but that he would be back by the end of his scheduled leave. Can he do that, or can I tell him he needs to come back sooner?