Rob Reiner and his wife Michele Singer Reiner were found dead in their Brentwood home after Los Angeles Fire Department crews responded to a medical-aid call and investigators said early examinations showed throat lacerations consistent with stab wounds.Law enforcement sources said police questioned the couple’s middle son Nick Reiner and later arrested and booked him on a felony charge, holding him on $4,000,000 bail while prosecutors review forensic evidence and Medical Examiner findings that will guide charging decisions.The deaths prompted widespread tributes from friends and colleagues in Hollywood and sharp controversy after Donald Trump posted on his social network mocking Reiner and blaming his outspoken opposition, remarks that drew condemnation from across the political spectrum and that the White House amplified without addressing requests to remove the message.