Nick Reiner briefly appeared in court in the killing of his parents, Rob Reiner and Michele Singer Reiner, who'd suffered "sharp force injuries."

Rob Reiner's son Nick Reiner was "entitled" and "wanted to live a life that didn't exist," a source close to the family tells PEOPLE. The 32-year-old, now charged with killing his parents, previously spoke about having "no identity" and "no passions" growing up in the shadow of a famous father.

Nick Reiner​ appeared in court on Wednesday on two counts of murder in the killing of his parents, Rob Reiner and Michele Singer Reiner.

Rob Reiner and Michele Singer Reiner's children, Jake and Romy Reiner, remembered their parents in their first statement since the couple's deaths: 'Words cannot even begin to describe the unimaginable pain.

Billy Crystal, Larry David, Martin Short, and more stars shared a heartfelt tribute for Rob and Michelle Reiner, who were killed in a fatal stabbing.

New information and interviews were unearthed regarding the deaths of Rob Reiner and his wife, Michele Singer Reiner, in The Rob Reiner Story: A Hollywood Tragedy – ABC News Special. The episode, which aired on Tuesday,

Reiner and his wife, Michele Singer Reiner, were found dead inside their Brentwood, Calif. home on Sunday afternoon at 78 and 68, respectively. The Los Angeles Police Department said at the time that their deaths were being investigated as a homicide, but that they had not identified a suspect and no one had been detained.

The special features interviews with Kathy Bates, Annette Bening, Albert Brooks, Michael Douglas, Kiefer Sutherland, Jerry O'Connell and Mandy Patinkin.