Rob Reiner in heated argument at Xmas party one day before his murder

Rob Reiner and his son Nick got into an argument on Saturday night at Conan O’Brien’s Christmas Party, one loud enough for plenty of other people to hear, according to TMZ.

The publication cite Reiner family sources as having confirmed the verbal altercation, which occurred less than 24 hours before the deaths of Rob and his wife, Michele Singer Reiner.

We reported the shock news yesterday after Hollywood filmmaker Rob, 78, and his wife, 68, were found dead at their home in Brentwood, Los Angeles with wounds consistent with a knife.

According to The Mirror, authorities described the scene as a “horror double murder”. Reportedly, Reiner and his wife were discovered by their daughter, Romy.

At a news conference late Sunday, LAPD Deputy Chief Alan Hamilton shared limited details, saying the investigation was still in its early stages. Detectives were in the process of obtaining a search warrant before conducting a “thorough” examination of the property.

“At this time, the Los Angeles Police Department is not seeking anyone as a suspect or as a person of interest … and we will not be doing that until we conduct our investigation and move forward,” Hamilton said.

New information released today revealed that the Reiners’ 32-year-old son Nick had been apprehended by authorities near the campus of the University of Southern California in Los Angeles. He was arrested on suspicion of murder around 9:15 p.m. on Sunday.

Nick was identified as a suspect and taken into police custody mere hours after the bodies of Rob and Michele were discovered.