Complex sentence: On April 8, through the mediation of the Red Cross, the Azerbaijani side returned Sloyan's head, The following day, Sloyan was interred for a second time, to lay his head with his body.
Split into simpler sentences: On April 8, however, the Azerbaijani side returned Sloyan's head, through the mediation of the Red Cross. The next day, Sloyan was interred for a second time, to lay his head with his body.