Chechnya's first president, the father of current leader Ramzan Kadyrov, was killed in an explosion on May 9, 2004, in a stadium during a parade dedicated to the WWII victory. Fifteen other people died in the attack.
"The investigation of the case was resumed on the request of Chechen President Ramzan Kadyrov," the source said.
Kadyrov said last week that his father was killed by former military commander Sulim Yamadayev, who was assassinated in Dubai on March 28.
"I have 70% proof that he was involved in the killing of my father, particularly as he tried twice to kill me, and wanted to poison a lake at my [Gudermes] residence on the day of my inauguration - I have witnesses," Kadyrov told reporters
Yamadayev, 35, a Hero of Russia who commanded the elite Vostok battalion in Chechnya, was shot by a lone gunman in the underground parking lot of the Dubai apartment building where he lived.
Yamadayev was officially dismissed as Vostok commander last August over alleged involvement in the 1998 abduction and murder of a Chechen businessman. The battalion, which answered directly to the federal Defense Ministry rather than Chechen authorities, has since been disbanded.
