Bill Hader was spotted in public for the first time since his alleged tense interaction with Nick Reiner.In the exclusive photos obtained by the New York Post, Hader appears visibly shaken outside his Los Angeles home, having a tense phone conversation. Reports suggested that he was pictured just hours before Rob Reiner and Michele Reiner were allegedly murdered. Hader was wearing a black hoodie, sweatpants and black and white Adidas slides.Hader reportedly got in a tiff with Nick Reiner at Conan O’Brien’s Christmas party. According to the witnesses, Nick interrupted a private conversation Hader was having, then stood there and stared before “storming off.”However, a source stated that Hader does not want to be connected to the story. He is “horrified over what happened and is extremely sad that what went down, actually went down.”However, Bill Hader wasn’t the only one with whom Nick Riener had an intense conversation.Continue to read for more information.Nick Reiner reportedly got into a “big fight” with Rob Reiner Nick Reiner allegedly got into a heated "big fight" with his father, Rob Reiner, at Conan O'Brien's Christmas party on December 13, as reported by People magazine.A source told the outlet:“Nick was freaking everyone out, acting crazy, kept asking people if they were famous.”According to TMZ, they had a “very loud argument” that was audible to many others. The couple then left the party.The sources reported that Michele Reiner had shared her deep anguish with friends in recent months over Nick's escalating mental illness and substance abuse struggles. She told them that they were now exhausted after trying everything for their son.Four Sixes Ranch Steakhouse Pop-Up Grand Opening - Source: GettyRob Reiner and his wife, Michele Reiner, were killed in the afternoon of December 14. Their bodies were discovered with stab wounds by their daughter, Romy, at their Brentwood, Los Angeles home. According to an official statement given by the Los Angeles Police Department (LAPD) on December 15:“Los Angeles Police Department officers assigned to West Los Angeles Division responded to a call of a death investigation in the 200 block of South Chadbourne Avenue. Once inside the residence, officers discovered two victims, who were subsequently identified as Robert and Michele Reiner.”Nick Reiner was later arrested in connection with their murders. He has since been charged with two counts of first-degree murder. If convicted, he could face life in prison without the possibility of parole or the death penalty.Rob and his wife, Michele, share three children – Jake, Nick and Romy. Nick has previously spoken about his struggles with substance abuse, which he started at the age of fifteen. In a 2018 interview, Nick recalled wrecking his parents’ guesthouse by “punching out different things” like a television and a lamp after being awake for days on cocaine.He has experienced numerous bouts of homelessness in Maine, New Jersey, Boston, and Miami. He once had a heart attack on a plane because of cocaine use.