ቦሪስካ ከእናቱ ጋር እንደጠፋ ይነገራል እና ምዕራባዊያን ጋዜጠኞች እሱን ለመከታተል ያደረጉት ሙከራ አልተሳካም።
Boriska is said to have disappeared along with his mother and a number of attempts by Western Journalists to track him down has failed.