Nick Reiner was diagnosed with schizophrenia, and the medications he was taking made him “erratic,” “dangerous,” and “out of his head,” a TMZ report claims. The outlet cited two sources who said Nick Reiner was under care for mental illness in the weeks leading up to his parents’ deaths. Nick Reiner was diagnosed with schizophrenia, altered meds made him ‘out of his head” before he allegedly murdered parents, sources say https://t.co/kzllqdfICW pic.twitter.com/0Mjo4AzzAa — New York Post (@nypost) December 19, 2025 TMZ shared further: We’re told in the month before the murders, Nick’s behavior had gotten “alarming.” He had recently received care at a Los Angeles-based rehab facility that specializes in mental illness and substance abuse. We’re told the facility charges $70,000 a month … and lots of rich, powerful parents send their troubled kids there. Our sources say 3 to 4 weeks before the murders, doctors changed his meds and he became even more erratic. Our sources say doctors were trying to adjust the medications so Nick stabilized, but it wasn’t working. One source told TMZ … once the meds were changed, “Nick was out of his head.” Our sources also say Nick’s substance abuse was worsening the schizophrenia. The outlet said it suspects Reiner will plead not guilty by reason of insanity. Watch additional coverage: Nick Reiner will plead not guilty to murdering his parents—and here's the exact reason why. pic.twitter.com/7zDOB4aBR7 — TMZ (@TMZ) December 19, 2025 More from Daily Mail: On Saturday night, Nick was brought along to a star-studded holiday party hosted by Conan O’Brien because his concerned parents reportedly wanted to ‘keep an eye on him’. Guests at the A-list packed holiday party said Nick displayed ‘antisocial behavior’ including staring at attendees, and he and Reiner reportedly had a loud argument at the bash. Insiders told Rolling Stone that Reiner and Michele had asked if they could bring Nick to the party due to fears over his mental state. And, at one point, witnesses said Nick got into a heated moment with comedian Bill Hader. Rob and Michele were found dead with their throats slit in their $13.5 million California mansion on Sunday. At the time of Nick’s arrest, his sister Romy, 27, who discovered their parents bodies, told investigators her brother ‘should be a suspect’ because he was ‘dangerous’. The Daily Mail exclusively revealed following the alleged murders that those around Nick saw him as a ‘ticking time bomb’. Sources said that Nick’s drug use spiraled out of control after his parents threatened to kick him out of their home. The troubled 32-year-old had been living in his parents’ guesthouse in Los Angeles for the past five years – where his behavior had become increasingly erratic and frightening, insiders claimed.