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Input: On Tuesday  Russian prosecutors announced a fresh probe into the April 3 death of 60-year-old Lyudmila Chichvarkina  the businessman's lawyer in Moscow said. Chichvarkina was covered in blood and bruised when she was found but paramedics ruled that she died of a heart attack.
 "There was clear evidence of an attempted murder " lawyer Vladimir Zherebenkov told the Associated Press on Tuesday  saying her body was bruised all over as if she was severely beaten and her clothes and shoes were drenched in blood from head to toe.
 It would have been a natural death only if "she had struck herself in the head twice and fell to the ground twenty times " he added.
 Chichvarkin also insists that his mother was murdered  citing his father's visit to the crime scene and evidence in police files. He also says the extradition request by Russia is politically motivated because he had spoken out against corruption in Russia's police force.
 The murder mystery might prove to be a major factor in the London court's decision whether Britain should extradite Chichvarkin back to Russia to face kidnapping charges. His lawyer says if Chichvarkin's suspicions are proven  Russia's case for his extradition will collapse.
Chichvarkin back to Russia to face kidnapping charges. His lawyer says if Chichvarkin's suspicions are proven  Russia's case for his extradition will collapse.
 Chichvarkin fled Russia in December 2008. A month later a Moscow court charged him in absentia with complicity in the kidnapping and put out an international arrest warrant.
 Chichvarkin says the charges are a complete fabrication from a police department that was seeking revenge for his efforts to expose corruption.

Mother ' s death overshadows UK extradition case