The entertainment world is reeling from the tragic deaths of director Rob Reiner, 78, and his wife, photographer Michele Singer Reiner, 68, who were found fatally stabbed in their Los Angeles home on Sunday. Their 32-year-old son, Nick Reiner, has been arrested and charged with two counts of first-degree murder in connection with their deaths.

According to reports, the couple's daughter, Romy Reiner, discovered their bodies on Sunday afternoon in their Brentwood home. Law enforcement sources indicated there were no signs of forced entry, and the Reiners had injuries consistent with being stabbed. Nick Reiner was apprehended later that evening in South Los Angeles, near the University of Southern California.

The Los Angeles Police Department has not disclosed specific details about what led investigators to suspect Nick, but confirmed that the investigation pointed to his alleged responsibility. Adding to the shock, sources revealed that Rob and Nick had a "brief but loud argument" at a holiday party at Conan O'Brien's home on Saturday night.

Nick Reiner appeared in court on Wednesday, December 17, but did not enter a plea. His arraignment has been postponed until January 7. He was seen wearing a jail suicide prevention smock. Nick's attorney, Alan Jackson, acknowledged the case as a "devastating tragedy" for the Reiner family and emphasized the proceedings would be complex. He urged against a "rush to judgment". District Attorney Nathan Hochman said his office has not yet decided whether to seek the death penalty.

The charges against Nick Reiner include special circumstances of multiple murders and the allegation that he used a knife, which could lead to a greater sentence.

In a statement released on Wednesday, Romy and Jake Reiner described the loss of their parents as "horrific and devastating". "Words cannot even begin to describe the unimaginable pain we are experiencing every moment of the day," they wrote. "They weren't just our parents; they were our best friends".

Rob Reiner and Michele Singer Reiner married in 1989 and had three children. Beyond his Hollywood career, Rob Reiner was known as a political activist and a supporter of progressive causes. Michele Singer Reiner was a photographer and creative partner to Rob.

Notably, Rob Reiner and his son Nick had previously explored their relationship and Nick's struggles with drug addiction in the 2016 film, "Being Charlie". Nick has been open about his battles with addiction, reportedly cycling through treatment facilities and experiencing homelessness.

The Reiner family has requested privacy during this difficult time.