Federal prosecutors have closed their investigation into the death of Heath Ledger without filing charges, meaning Mary-Kate Olsen will not have to testify, People reports. The US attorney's office in Manhattan had been trying to determine whether the painkillers Ledger took were obtained illegally.
The feds had subpoenaed Olsen, who was dating Ledger before he died, but she was demanding immunity before testifying. This likely means the end of the case, though the New York Post notes that the DEA could try to find a city agency to pursue it. (More Heath Ledger stories.)