In Donnie Eischer's audio book Dead Mountain, he obtains an interview with Igor's surviving sister Tatiana. She states that except for the familial gapped teeth she and her brother have, at burial ,his body looked quite unlike himself. Notably his skin was darkened and his hair white. Later, Donnie indicates that ultraviolet exposure and mummification may account for the skin tone. It does not explain the white hair. Hair does not instantly go white, it is not living tissue. This leads me to think that there may have been bleaching. Bleach will lighten hair, but this post mortem sanitation measure would surely have been applied to the others. Too, I would presume that soap and water would have sufficed since the bodies were frozen when brought to the morgue. I'd not use a bleach concentration as a first choice. Even so, bleaching of the skin would surely have been the priority, not the hair. This is a peculiar observation of the physical anomality Does anyone have something to add in this regard?