MOSCOW (AP) — Russian investigators say they won’t close a probe against a Russian lawyer who died in jail of an untreated illness.

Sergei Magnitsky died in November 2009. He had been charged with tax evasion and arrested by the same police officials he had accused of a $230 million tax fraud. His death sparked outrage in Russia and globally.

Magnitsky’s family petitioned to get the probe against him closed. But the Investigative Department of the Interior Ministry said Thursday they must still contact his other close relatives to make sure they agree.

Magnitsky’s mother says Magnitsky does not have other close relatives.

Two prison doctors have been charged with oversight leading to death, but none of the officials Magnitsky accused of framing him have faced charges.