This is the defense that will define Nick Reiner's future — and it almost never works.

Alan Jackson spent three weeks investigating Nick's case before withdrawing. His parting statement made his strategy clear: "Nick Reiner is NOT guilty of murder under California law." That's code for insanity defense. And now public defender Kimberly Greene has to build it from scratch.

Here's what we know: Nick was reportedly being treated for schizophrenia at the time he allegedly killed his parents, director Rob Reiner and philanthropist Michele Singer Reiner. Sources tell NBC4 about the diagnosis. TMZ reports schizoaffective disorder. Multiple outlets confirm his medication was changed weeks before January 6th, and his behavior became "erratic and dangerous."

But California's insanity standard doesn't care about diagnosis. It cares about one moment — the instant of the crime. Under the M'Naghten Rule, the defense must prove Nick either didn't understand what he was doing or couldn't distinguish right from wrong at that precise time.

Attorney and former prosecutor Eric Faddis joins us for a deep dive into how this defense works — and whether Nick's case fits. We examine the two-phase trial process, how medication changes affect the legal argument, and what prosecutors will use against him.

Sources say Nick attended a Christmas party days before the killings and was coherent enough to have conversations. That's exactly the kind of evidence that sinks insanity defenses.

We also discuss Nick's documented history of cocaine and stimulant abuse — and how California law treats mental illness complicated by addiction.

Less than one percent of defendants plead insanity. Here's whether Nick Reiner could be one of the few who succeeds.

#NickReiner #RobReiner #MicheleSingerReiner #InsanityDefense #ReinerCase #Schizophrenia #CaliforniaLaw #MNaghtenRule #MurderTrial #LegalDeepDive

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