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Nick Reiner appeared to experience a fleeting moment of satisfaction, characterized by a subtle smirk, during his arraignment in a downtown Los Angeles courtroom on Monday.
Body language expert Susan Constantine shared her insights with Page Six following Nick’s not-guilty plea regarding the stabbing deaths of his parents, Rob Reiner and Michele Singer Reiner.
“It’s quite intriguing how his head tilts downward as he smiles,” Constantine noted, suggesting that this gesture indicated an attempt to mask his emotions. The downward tilt, she explained, was part of this concealment.
Constantine identified this expression as a type of “leakage” known as “duper’s delight.”
“‘Duper’s delight’ refers to the rush or enjoyment a person feels,” she explained. “It manifests as a somewhat sinister smile that emerges at the most inappropriate times.”
Constantine believes Nick was exhibiting a “form of enjoyment” in that moment, but that he was also trying to hide his emotions.
“It was an unconscious smirk of a sense of enjoyment or elation or excitement,” she said.
Once Nick became “consciously aware” that he was smirking, Constantine said he quickly “changed his behavior.”
Constantine, whose book “How to Spot a Liar in 7 Seconds or Less” will be released in 2027, also speculated that the “pulsating” in Nick’s jawline and the lines on his forehead reveal that there is “a lot of tenseness.”
“His forehead shows a lot of worry,” she said. “His eyes show paranoia and fear — high levels of it. An intensity level of it.”
As Page Six previously reported from Nick’, 32, ‘s arraignment, where he was seen on camera wearing a brown jumpsuit and had his hands shackled during Monday’s arraignment.
The hearing marked the first time Nick was seen in the Los Angeles courtroom. The “Being Charlie” screenwriter had sunken eyes and a shaved head.
He sat with a stoic expression alongside his attorney, public defender Kimberly Greene.
The judge asked if he was willing to waive his rights to a speedy preliminary hearing, to which Nick replied, “Yes.”
His next court appearance is scheduled for April 29.
Nick, 32, was arrested and charged with two counts of first-degree murder with a special circumstance of multiple murders after his parents were found stabbed to death in their Brentwood home on Dec. 14, 2025. Rob was 78 and Michele was 70.
According to the LA County Medical Examiner’s Office, the “When Harry Met Sally” director and Michele died from “multiple sharp force injuries.” Their death was ruled a homicide.
Nick appeared in court that month wearing a suicide prevention smock, though he wasn’t wearing one during his second hearing in January.
Ahead of that court appearance, Nick’s lawyer, famed criminal defense attorney Alan Jackson, suddenly quit. Jackson said at the time and he and his team had “no choice but to withdraw and ask to be relieved.”
Nick — who is facing a maximum sentence of life in prison without the possibility of parole or the death penalty — is being held without bail in solitary confinement at the Twin Towers Correctional Facility in Los Angeles.
Rob and Nick allegedly got into an argument at Conan O’Brien’s Christmas party the night before the Hollywood icon and Michele were killed.
However, a close friend of Rob told Page Six that Nick and his parents were getting along great just weeks before their tragic deaths.
Nick has been in and out of rehab for drug addiction and was diagnosed with schizophrenia before his parents died.
Nick’s siblings, Romy Reiner and Jake Reiner, have kept a low profile, though they have been slowly returning to normal life after losing their beloved parents.
If you or someone you care about is affected by any of the issues raised in this story, call SAMHSA’s National Helpline at 1-800-662-HELP (4357).