A:
It is obligatory upon the persons who took unlawful things to return them or to return their value to their owners. If the owners died, they should give the properties to the heirs. If they can not do so or they fear that great mischief would occur, they may give the value to the poor on behalf of the owners. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.