The son of former Nazi death camp guard John Demjanjuk has called for an investigation into his father's death at a German nursing home and accused doctors of performing a "medical execution."
"Just before he died unexpectedly, he was given a high dose of a pain killer which is banned in the USA and which the German pharmaceutical manufacturer states should not to be given to patients with his bone marrow condition," John Demjanjuk Jr. said in a statement.
"We believe this led to his death and any foul play should be investigated."
German officials said Demjanjuk, who had been convicted of more than 27,000 counts of accessory to murder, appeared to have died of natural causes at the age of 91.
An autopsy gave no clear indication of the exact cause of death but also found no sign that anyone else was involved, a spokesman for the public prosecutor's office in the southern town of Traunstein said several days after Demjanjuk's March 17 death.