Rob Reiner murders: Nick Reiner checked into The Pierside hotel in Santa Monica after he allegedly killed his parents, sources say
Following the deaths of renowned Hollywood director Rob Reiner and his wife Michele Singer Reiner, Eyewitness News is learning more details regarding their son Nick Reiner, who's accused of killing his parents.
Sources told ABC News that Nick Reiner checked into The Pierside hotel on Colorado Avenue in Santa Monica either late Saturday night or early Sunday morning after he allegedly killed his parents.
Law enforcement members have reportedly already searched the hotel room for any evidence.
According to the Medical Examiner's report, Rob and Michele Reiner died from "multiple sharp force injuries. The determination involves cuts or stab wounds from a sharp object.
READ MORE | Rob Reiner and Michele Singer's official cause of death released by medical examiner
Meantime, Nick Reiner made a brief first appearance in court on Wednesday.
The 32-year-old sat behind the glass and appeared quiet and calm. He was wearing a blue suicide prevention smock and handcuffs in the courtroom. The judge in the case did not allow him to be recorded.
His attorney, Alan Jackson -- who helped defend Karen Read in Massachusetts -- waived the right to a speedy arraignment. The arraignment is set for Jan. 7.
"There are very, very complex and serious issues that are associated with this case," Jackson told reporters outside the courthouse after the hearing. "Those need to be thoroughly but very carefully dealt with."
Nick Reiner was charged Tuesday with two counts of first-degree murder, with the special circumstance of multiple murders, for allegedly stabbing his parents to death, Los Angeles County District Attorney Nathan Hochman said.
The charges carry a maximum sentence of life in prison without the possibility of parole or the death penalty, according to Hochman.
"Their loss is beyond tragic and we will commit ourselves to bringing their murderer to justice," Hochman said.
Hochman said his office has not yet decided whether to seek the death penalty in the case.
New videos obtained by Eyewitness News appear to show the moments leading up to Nick Reiner's arrest on Sunday night.
SEE ALSO: Video shows Nick Reiner in gas station store, LAPD arresting him for parents' murders
One of the videos appears to show Nick Reiner moments before his arrest near the University of Southern California. In the video, he's wearing jeans, a striped jacket and a baseball cap. He's seen with a red backpack slung over one shoulder as he enters a gas station and purchases a drink.
Another video shows him outside walking near a crosswalk when several police vehicles with flashing lights surround him. He can be seen in the video raising his hands.
The Reiners' daughter, Romy, found her parents' bodies in their Brentwood home on Sunday, sources told ABC News. During a police commissioners meeting Tuesday, LAPD Assistant Chief Dominic Choi said the bodies were found in the master bedroom of the home.
Law enforcement sources tell ABC News that a massage therapist showed up at the Reiners' house Sunday afternoon and contacted Romy Reiner when no one answered the door.
Sources say Romy went into the master bedroom area of the home and saw her father's body. She ran out and 911 was called.
A neighbor told ABC News that actors Billy Crystal and Larry David were seen at the house after police arrived on Sunday, and the neighbor said, "Billy looked like he was about to cry."
Nick Reiner -- who was living on his parents' property, according to a former family security guard -- had been open about battling drug addiction since he was a teenager. In 2016, Nick Reiner worked with his dad on the movie "Being Charlie," which was based largely on his struggle with drug addiction.
Sources told ABC News that Nick Reiner got into an argument with his father at a holiday party on Saturday night and was seen acting strangely.
"Prosecuting cases involving family violence are some of the most challenging and heart-wrenching we face because of the intimate and often brutal nature of the crimes," Hochman said in a statement on Tuesday.
Jake and Romy Reiner, the couple's two other children, issued a statement Wednesday sharing their feelings on the loss of their parents and thanking family and friends for the outpouring of condolences. Nick Reiner was not mentioned in the statement.
Actress Meg Ryan paid tribute to Rob Reiner, writing on Instagram, "Oh how we will miss this man... Thank you, Rob and Michelle, for the way you believe in true love, in fairy tales, and in laughter. Thank you for your faith in the best in people, and for your profound love of our country."
Ryan's statement added: "I have to believe that their story will not end with this impossible tragedy, that some good may come, some awareness raised... I don't know, but my guess is that they would want that to be hopeful and humane, to be something that brings us all to a greater understanding of one another and to some peace."
Rob Reiner was the Emmy-winning star of the sitcom "All in the Family" who went on to direct films including "When Harry Met Sally..." and "The Princess Bride." He was an outspoken liberal activist for decades. Michele Singer Reiner was a photographer, movie producer and advocate for LGBTQ+ rights. They had been married for 36 years.
Authorities haven't said anything about a motive for the killings and would give few details when asked at the news conference.
The Associated Press and ABC News contributed to this report.
