Rob Reiner Murder Investigation: What We Know About Director and Wife Michele's Deaths.

Rob Reiner and Michele Singer Reiner's deaths are at the center of a police investigation. The When Harry Met Sally director and his wife of 36 years were found dead at their Los Angeles home Dec. 14, with a source telling NBC News that the couple appeared to have suffered stab wounds. The gruesome discovery led responding officers to determine that the Reiners "were the victims of homicide," according to a Los Angeles Police Department press release issued on Dec. 15. "The investigation further revealed that Nick Reiner, the 32-year-old son of Robert and Michele Reiner, was responsible for their deaths," authorities continued in their statement. "He was booked for murder and remains in custody with no bail." As for the events leading up to Nick's arrest? It appeared that the screenwriter clashed with Rob, 78, the day before he was taken into custody. As multiple sources told People, the father-son duo got into an argument at Conan O'Brien's Christmas party on Dec. 13. Family friends also confirmed the dispute, telling the Los Angeles Times that guests at the bash noticed Nick—who Rob shared with Michele along with kids Jake Reiner, 34, and Romy Reiner, 27—acting strangely. And in the wake of the tragedy, Rob's oldest daughter Tracy Reiner—who he adopted during his relationship with late ex-wife Penny Marshall—said she had seen her dad at a family gathering the day before his passing. “I came from the greatest family ever,” the A League of Their Own actress, 61, told NBC News. “I don’t know what to say. I’m in shock." It was a sentiment largely shared by the movie community, including Kathy Bates, who worked with Rob in 1990's Misery. "I loved Rob," the Oscar winner told NBC in a Dec. 14 statement. "He was brilliant and kind, a man who made films of every genre to challenge himself as an artist." She added, "He changed the course of my life. Michele was a gifted photographer. She shot my beautiful photos for the Misery campaign. My heart breaks for them both." For more details on the investigation into Rob and Michele's deaths, read on. Rob Reiner and Michele Singer Reiner's Son Nick Reiner Details Struggle With Drugs Years before Rob Reiner and Michele Singer Reiner’s tragic deaths, their son Nick Reiner shared that he struggled with addiction, even collaborating with his father on the 2015 film Being Charlie about substance abuse. Nick explained that he had been to rehab 17 times before turning 30. “I was homeless in Maine. I was homeless in New Jersey. I was homeless in Texas,” he told People in 2016. “I spent nights on the street. I spent weeks on the street. It was not fun.” Two years later, Nick recalled an instance when he “wrecked” his home while high on drugs. “I went 10 rounds in my guest house,” he shared on the Dopey podcast in 2018. “I got totally spun out on uppers—I think it was coke and something else—and I was up for days on end. I started punching out some things in my guest house.” Rob Reiner and Nick Reiner Fight at Conan O’Brien’s Christmas Party on Night Before Couple Is Found Dead The When Harry Met Sally director and his 32-year-old son got into a heated argument at Conan O’Brien’s Christmas party on Dec. 13, multiple sources at the event told People. Family friends also confirmed to the L.A. Times that Rob and Nick fought at the holiday celebration, saying that guests noticed Nick acting strangely. Rob Reiner and Wife Michele Singer Reiner Are Found Dead in Their Brentwood, Calif., Home The day after the Christmas party, the Los Angeles Police Department responded to a call of a death investigation at a home in Brentwood, Calif., at about 3:40 p.m. on Dec. 14. “Once inside the residence, officers discovered two victims,” the LAPD said in a press release, “who were subsequently identified as Robert and Michele Reiner.” The Robbery Homicide Division, Homicide Special Section (RHD/HSS) started an investigation into the circumstances of their deaths. Deputy Police Chief Alan Hamilton told reporters that many family members would be interviewed, per NBC News. In addition to Nick, the couple are parents to daughter Romy Reiner and son Jake Reiner, and Rob also adopted late ex-wife Penny Marshall's daughter Tracy Reiner. The Reiners’ Manner of Death Revealed as Homicide Rob and Michele did not die of natural causes, with a source close to the Reiner family telling NBC News that the couple appeared to have died from stab wounds. “As a result of the initial investigation,” the LAPD said in a press release, “it was determined that the Reiners were the victims of homicide.” Nick Reiner Is Arrested on Suspicion of Murder The LAPD said their investigation determined that Rob and Michele's son Nick was "responsible for their deaths.” The screenwriter wasn’t taken into custody until hours after his parents' bodies were found. “Nick Reiner was located and arrested at approximately 9:15 p.m.,” police said in a press release, adding as of Dec. 15, “He was booked for murder and remains in custody with no bail.” E! News was not able to find a lawyer on file to speak on Nick Reiner's behalf. Rob Reiner’s Daughter Tracy Reiner Reacts to His Death After Rob's death, Tracy said she’d seen her father the day before his passing. “I came from the greatest family ever,” she told NBC News. “I don’t know what to say. I’m in shock.”