Jake and Romy Reiner, children of Rob Reiner and Michele Reiner and siblings of the detained Nick Reiner, broke their silence after the murder of his parents"Words cannot describe the unimaginable pain we feel every moment of the day," they said in a joint statement sent to the American magazine. PeopleThe statement adds that "they weren't just our parents, they were our best friends." The statement also expresses gratitude for the outpouring of support received.