The mother of Russian opposition leader Alexei Navalny appealed Tuesday to President Vladimir Putin to intervene and turn her son's body over to her so she can bury him with dignity. Lyudmila Navalnaya, who has been trying to get his body since Saturday, appeared in a video outside the Arctic penal colony where Navalny died on Friday. Russian authorities have said the cause of Navalny’s death is still unknown and refused to release his body for the next two weeks as the preliminary inquest continues, members of his team said.