Los Angeles County officials have confirmed that filmmaker Rob Reiner and his wife, Michele Reiner, died from multiple sharp force injuries, with the deaths ruled as homicide. Their son, Nick Reiner, has been accused of fatally stabbing his parents, and authorities allege he used a knife in the attack. The couple was found dead in their West Los Angeles home on December 14 by their daughter, Romy, who alerted authorities after discovering the scene. Few details have emerged about the events leading up to the incident, though a source reported a family argument at a holiday party the night before. Nick Reiner appeared in court on Wednesday, with his arraignment scheduled for January 7.