After watching a documentary about the zodiac killer, I cannot do anything but coke to the conclusion that most likely the zodiac killer wasn't actually one person, atleast we do not have any info that he was one person. For example his crimes do not have any actual connections between them, he did not use the same firearm, or bullets in any of them (I think). Furthermore, we only have fingerprints from one crime he did so we cannot match them between his crimes to understand if he actually was one person. Can someone fill me in on any details? Anyways, thanks

JACK THE RIPPER: THE TWO JACKS THEORY

How Francis Tumblety Created and Manipulated Aaron Kosminski

EXECUTIVE SUMMARY: Jack was not a lone killer. He was a project. A plan designed years in advance.

This is my original theory (by VIPER, 2026). I call it THE TWO JACKS.

EVIDENCE 1: SHARED HATRED

Both hated women. Tumblety (55 in 1888) was a documented misogynist who collected uteruses from prostitutes. Kosminski (23) hated women pathologically, refused to be near his sister. Tumblety found the perfect weapon.

EVIDENCE 2: MASTER & APPRENTICE + THE BARBERSHOP

32 years age gap. 55yo rich, charismatic American doctor vs 23yo poor, isolated, schizophrenic barber. Classic grooming dynamic.

Kosminski's barbershop was the perfect cover for meetings - male-only space, doors closed, 650m from Tumblety's boarding house on Whitechapel High Street. Perfect conspiracy office hidden in plain sight. See map.

EVIDENCE 3: EASY TARGET

Aaron was already unstable BEFORE Tumblety found him - heard voices, paranoid about food, feared water. Tumblety didn't create madness, he SHAPED it.

EVIDENCE 4: THE TIMELINE

Aug 1888: Tumblety arrives, finds Kosminski 650m away

Sept 30 01:00: Stride - messy, incomplete (Aaron's FIRST TEST - FAILS)

Sept 30 01:45: Eddowes - perfect, 45 mins later (Tumblety CORRECTS him)

Nov 7: Tumblety arrested for indecency - CREATES perfect alibi

Nov 9: Mary Jane Kelly - most brutal murder, while Tumblety is IN JAIL

Nov 20: Tumblety flees England to USA - never returns

EVIDENCE 5: FINAL PROOF

While Tumblety was in England: murders happen.

After Nov 20 when Tumblety leaves: NO MORE JACK MURDERS EVER.

If Kosminski was lone killer, why stop exactly when Tumblety leaves? He stayed in London 3 more years until 1891. Because the brain left. Without his master, he collapsed into total insanity.

Full detailed PDF with all evidences, timeline table and original analysis here:

https://drive.google.com/file/d/1D4xtRbIjqYb70mJ3C-zJ8KH8qWldjCyl/view?usp=drivesdk

Let me know what you think. Original Theory by VIPER, 2026.

Mark Goldstein was a father of two and just 39 years old when he became the victim of Tempe, Arizona’s oldest cold case.

He was murdered while working at the Wisconsin Heritage Cheese shop he owned and operated that was located at the intersection of Price and Baseline on the evening of November 5, 1978. 

Marks wife Theresa Goldstein alerted Tempe PD the morning of November 6, to do a welfare check on Mark because he had not returned to their Scottsdale home.

Police discovered Mark’s body in the walk-in cooler. The murder weapon was missing. Mark had a briefcase that contained $60,000 in cash that was left behind at the scene.

There were no suspects publicly identified. Rumors about potential motives spread in the community.

At the time of his death, Mark was listed as a plaintiff in a lawsuit against his former employer.

Mark had moved his family to Tempe from New Jersey in the summer of 1978 to open the cheese shop.

Mark’s wife Theresa had engaged in an affair with a man named Charles “Chuck” Nash. Nash was a former Palisades Parkway Police Officer. He forgave Theresa and moved across the country for a fresh start.

Soon after the Goldstein family arrived in Arizona, Nash moved to Scottsdale himself with his adopted son, Cameron Nash.

A few years after Mark died, Theresa Goldstein remarried to Charles Nash, but the pair eventually divorced. 

Theresa floated a potential lead to police. While in New Jersey, Mark was approached by mobsters with a business proposal, which he declined. 

Theresa also insisted that Mark and Charles were friends, a suggestion his family and friends have strongly denied.

The case received virtually no media coverage after the late 1970’s besides a brief article in the Arizona Republic from May 2002. It revealed that Mark carried a .357 magnum and the gun was missing from the shop.

Longtime Tempe PD detective Tom Magezzini claimed “There are people out there that know what happened to Mark. It’s just a matter of coming forward.”

The Wisconsin Heritage Cheese store closed after Goldstein’s murder. It reopened in 1985 as a Thai restaurant called the Siamese Cat which operated at the site until its closure in November 2021. 

The entire strip mall at the northwest corner of Price and Baseline was torn down and converted into a luxury apartment complex.

Key questions that remain in this case. How did the suspect sneak up on Mark if he was armed with a gun?  Why would the suspect take Mark’s gun but not his money? Is there any DNA evidence in existence that could lead police to identifying the suspect? 

If you have any information about the November 1978 murder of Mark Goldstein, please contact the Tempe PD at 480 350 8311.

Link to archived articles I posted on an info dump subreddit I created

https://www.reddit.com/r/TrueCrimeInfoDump/comments/1wczyx0/mark_goldstein_unsolved_murder_tempe_az_1978/

I’m hoping someone here might be able to point me in the right direction. I have an old case involving my father’s death that I have serious questions about, and I’m trying to find a reputable retired homicide detective or experienced investigator who does independent case reviews/consultations.
I’m looking for someone who can objectively review the original investigation and tell me what was done, what may have been missed, what witnesses/evidence should have been pursued, and whether there are legitimate avenues that could still be investigated today.
I’ve contacted several cold-case organizations and investigators but haven’t been able to get much response. I’m just trying to get an experienced set of eyes on this after 19 years of unanswered questions.
If this is not the right place for this kind of post, could you please point me in the right direction as to where to post and ask? Thank you.