There is no clear, verified answer yet on why Nick Reiner allegedly did it, and Reddit discussions are mostly speculation, reaction, and piecing together media reports rather than solid facts. Reported information so far points to a mix of long‑term addiction, serious mental health issues, and a still‑under‑investigation set of events on the night his parents, Rob and Michele Reiner, were killed.

What people are asking on Reddit

Many Reddit threads are essentially trying to answer the same question you’re asking: “What made Nick snap, what was his motive, and why did he do it?” Commenters often:

  • Refer to news reports that he had a long history of heroin and cocaine use, including a “cocaine heart attack” and destructive outbursts while high.
  • Mention reports of psychiatric treatment, including discussion of psych meds that “messed with his head,” and speculate whether his medication and illness played a role.
  • Debate whether any clear motive has been reported, with most agreeing that authorities have not publicly given a simple explanation.

A strong theme in those threads is that outsiders probably will never get a neat, single-sentence reason, especially while the case is pending.

What is actually known from reports

From mainstream reporting and commentary being cited on Reddit, several points keep coming up:

  • Nick Reiner has a documented history of addiction, including heroin and heavy stimulant use, multiple rehabs, and episodes of destructive behavior (like destroying a guest house while high).
  • Some coverage and commentators say he struggled with serious mental health issues and was on or had been on psychiatric medications before the killings.
  • Police and media reports state that Rob and Michele Reiner were fatally stabbed in their Brentwood home and that Nick was arrested and is being held without bail pending further proceedings.

None of these pieces, by themselves, explain why he allegedly killed his parents; they only show a background of instability and illness.

How Reddit is framing the “why”

Redditors tend to float a few broad, speculative theories (and nearly always without inside knowledge):

  • Addiction + rage : Some say years of addiction, dependence on his parents, and anger around boundaries or money may have boiled over.
  • Mental illness / medication : Others focus on reports of mental illness and psych drugs, arguing that a combination of symptoms and side effects may have severely distorted his thinking.
  • Family dynamics : A few posts note hints of tense family relationships and the burden on parents dealing with a troubled adult child, but details are sparse and largely inferred, not documented.

Even in the more intense threads, many users push back against wild theories and remind others that “we don’t know his motive” and that speculating can be disrespectful to the victims and surviving family.

Why there still isn’t a clear answer

There are a few reasons no one online can give a definitive “why did Nick Reiner do it” yet:

  • The case is ongoing; full investigative findings and trial testimony have not been aired publicly, so any motive remains provisional and officially unconfirmed.
  • Addiction and severe mental illness rarely produce a single, tidy explanation; people close to similar situations often say there is a long buildup of crises, relapses, and untreated issues.
  • Much of what circulates on forums comes from snippets of podcasts, tabloids, or second‑hand accounts about his behavior in rehab or at home, which do not directly explain the final violent act.

So, when people ask “why did Nick Reiner do it Reddit,” what they usually find is a mix of partial facts about addiction and mental health, emotional reactions, and speculation—not a settled, authoritative motive.

Information gathered from public forums or data available on the internet and portrayed here.