New details emerge about 1928 odyssey that changed a dictator.
'Perfect husband and father' axed, stabbed or strangled full-figured women 'who resembled his mother'.
Couple 'had a row' before their heads 'almost blown off by a grenade', say reports.
Thousands of volunteers had joined search for three year old girl in Tomsk.
Tearful plea on president's televised call-in leads to promise to overcome carnage in Khakassia and Chita.
Viktoria Povesma, 20, went missing after night out with friends, and later her severed head was found in a plastic bag.
As Western children salute Santa's Rudolph, here in the Sakha Republic the antlered animals are in peril from ravenous predators.
Events highlight the scourge of terrorism and the unity of Russians in the face of the cruel attack on children and parents.