Rob Reiner and Michele Singer Reiner were found stabbed to death at their Brentwood home in Los Angeles, and their son Nick Reiner was arrested and later booked on murder charges with bail set at $4,000,000.Detectives with the LAPD said the homicide inquiry remains active as officers process the residence, gather forensic evidence and interview witnesses, and investigators have not publicly disclosed a motive while noting the son had documented struggles with addiction and homelessness.The deaths prompted widespread tributes from figures including Barack Obama and Joe Biden and a heated political backlash after Donald Trump posted on Truth Social blaming "TRUMP DERANGEMENT SYNDROME," comments that drew broad condemnation and renewed calls to avoid speculation while the criminal inquiry continues.