The Dumler family murders: three adults bound and shot, two children spared, a scene wiped clean.
In October 1969, Martin and Patricia Dumler and Patricia's mother, Mary Wilson, were found shot to death in their Mount Lookout home in Cincinnati. There was no forced entry and no sign of robbery. The only fingerprints belonged to the victims. The case is open.
Case file at a glance
The Dumler case looks personal and professional at once: no robbery, no forced entry, a wiped scene, and children left alive. That points to someone who knew the family or planned carefully, but after 57 years police still say they cannot point in one direction.
- Bound, shot, and left.All three were forced into an upstairs bedroom and bound with household cords. Records show all three were shot to death.
- A scene wiped clean.Police say the only fingerprints found belonged to the victims. There was no forced entry and no sign of robbery.
- The children were spared.The couple's children, 5 and 4, were downstairs. The next morning they went to a neighbor, saying they could not wake their parents.
- Possible links ruled out.Police checked for a connection to the Manson murders and met with the Hamilton County Sheriff about the 1966 Bricca murders; they ruled both out.
Editorial assessment of public sources, not a finding of fact. Nobody named here has been charged unless this page says so.
What happened
Dates come from a FOX19 report. Items marked unverified come from author J.T. Townsend and are disputed by the family.
The killings
Martin and Patricia Dumler and Mary Wilson, Patricia's mother, are killed in the family home in Mount Lookout. The killer forces all three into an upstairs bedroom and binds them with household cords (lamp, TV, and appliance cords).
The shooting
Records show all three were shot to death. The killer removed the cords from their arms and ankles and left. Per Townsend (unverified), he returned up to an hour later and stabbed the couple in the chest, and pillows were used to muffle the gunshots.
The children
The couple's children, ages 5 and 4, who were downstairs and unharmed, go to a neighbor's door and say they cannot wake their parents.
The investigation
Police give about 20 polygraphs, interview at least 100 people, and check hundreds of tips. They write to other agencies, including Atlanta and Los Angeles, asking about the Manson murders and similar cases. Nothing links.
Bricca question
Police meet with the Hamilton County Sheriff's Office about a possible link to the 1966 Bricca family murders, and rule it out.
52 years later
Police say they have no suspect and need more information. A family statement says a tip was sent to Crime Stoppers about 15 years earlier and was worked with homicide detectives (not confirmed by police).
Victims
Three adults and two children who became orphans.
Photo: Ohio Attorney General, unsolved-homicide listing. The source states no reuse license; shown at the site owner's direction. Contact us to have it removed.
DiedMartin Dumler
Lived with his wife and two young children on Beverly Hill Drive. Police describe his business dealings as legitimate and the marriage as good.
Photo: Ohio Attorney General, unsolved-homicide listing. The source states no reuse license; shown at the site owner's direction. Contact us to have it removed.
DiedPatricia Dumler
Martin's wife. Per Townsend (unverified), she may not have been the target.
Photo: Ohio Attorney General, unsolved-homicide listing. The source states no reuse license; shown at the site owner's direction. Contact us to have it removed.
DiedMary Wilson
Patricia's mother. No known photos exist, according to FOX19.
Photos marked as from the Ohio Attorney General are credited under each picture. Where a card shows a silhouette, we found no photo. Anyone who wants a photo added, changed, or removed can use the contact form at the bottom of this page.
Evidence
What exists, and what each piece may or may not mean.
| Item | What is known | Disputed or unknown |
|---|---|---|
| The scene | Police describe it as essentially wiped clean. The only fingerprints found belonged to the victims. | Who cleaned, and how long it took. |
| Entry | No forced entry; no sign of robbery. | How the killer got in. |
| Restraints | Household cords from lamps, a TV, and appliances were used to bind the three. | The cords were removed from the bodies; whether they were kept is not stated. |
| Cause of death | All three were shot to death. | Per Townsend (unverified): stab wounds to the couple and pillows used to muffle shots. |
| A stolen gun | Townsend says a neighbor's .38 revolver was stolen from an unlocked car two days before. | Unverified; the FOX19 article does not confirm a link. |
| Testing | No DNA testing existed in 1969, and no landline records exist. | Whether any evidence was kept and retested. |
Public documents
One long local news report is the main public source.
| Document | Holder | What it shows | Access |
|---|---|---|---|
| FOX19: Mind-boggling Mount Lookout murder mystery (2021) | FOX19 / WXIX | Police statements, the scene, the investigation, and the family's rebuttal of an author. | Online, free |
| Cincinnati Police case file; 1969 polygraphs and interviews | Cincinnati Police Department | About 20 polygraphs, 100+ interviews, and letters to other agencies. | Withheld or sealed |
Access labels: Online, free = we could open it. Fan-hosted copy = a private researcher posted scans; originals are held by the named agency, and we cannot vouch for completeness. Quoted in news = reporters read it; we did not see the document itself. Request needed = held by an agency or court. Withheld = the holder has not released it. We cannot reach non-public records, and we do not try to.
Online discussion (unverified)
Where people talk about this case online, and how to read it.
| Platform | Live search | What you tend to find |
|---|---|---|
| Google: Reddit | site:reddit.com search | Public Reddit threads that Google has indexed, including old discussions. |
| Google: X and Twitter | X and Twitter posts | Public posts and profiles that appear in search results. |
| Google: Facebook | Public Facebook pages and posts | Only public pages and groups that Google can see. Private groups never appear. |
| Google: Instagram and TikTok | Instagram and TikTok | Public posts, memorials, and videos. |
| Google: forums | Forums and message boards | Long-running true-crime forums. |
| Google News | Latest news | Newest reporting, which is usually more reliable than posts. |
| Search Reddit | Long discussion threads and theories, often by amateur researchers. No sign-in needed to read. | |
| X (Twitter) | Search X | Short posts, news links, and anniversary notes. May require sign-in. |
| Search Facebook | Public groups and family or community pages. Requires sign-in. | |
| Search #dumlermurders | Memorial and true-crime posts. Requires sign-in. | |
| YouTube | Search YouTube | Documentaries, news clips, and interviews. Quality varies widely. |
Be careful with online theories. Naming a private person as a suspect can harm an innocent family, and many "identifications" on forums have been wrong. Our own tools could not read these platforms: Reddit blocks automated access, and the others require an account. The Google searches above work from your browser. To get new public mentions by email, make a free Google Alert for the case name in quotation marks.
Coverage timeline and verification
What local and national reports say, and when we last checked for a solution.
Status is re-checked on a regular schedule. If you know of a development we missed, use the clue form near the top of this page or the contact form, and include a link.
Suspects
Police have named no suspect. These are the ideas raised in public.
Someone who knew the family
Why named: Police believe the killer knew the family: there was no forced entry, and the children were spared.
Against: No name has been confirmed. Police say more than one killer may have been involved.
A relative tied to the workplace
Why named: One theory by author J.T. Townsend.
Against: Unverified. The family says it never spoke with Townsend and disputes his work.
An erratic neighbor who had lost his job
Why named: One theory by Townsend.
Against: Unverified; no name released by police.
A man with country-club connections
Why named: Described as suspicious by family members, per Townsend.
Against: Unverified; the family disputes Townsend's account.
Where a card shows a silhouette, we found no photo. Anyone who wants a photo added, changed, or removed can use the contact form at the bottom of this page.
Latest development: the family speaks
No suspect has been named. The most recent public development is the family's response to a book about the case.
What was said in 2021
- Police said they cannot point in one direction, believe the killer knew the family, and that more than one person may have been involved.
- Lt. Stephenie Fassnacht described the killer as "somebody who knows what they're doing, possibly has done this before or maybe since."
- A family statement disputes Townsend's claims, including that no family member followed up on the case.
The claims and how strong they are
| Claim | Source | Status | Our rating |
|---|---|---|---|
| The scene was wiped clean; only the victims' prints found | Police, via FOX19 | Reported. | Documented |
| The killer knew the family | Police belief | Inference from no forced entry and the children being spared. | Inference |
| The couple was stabbed after being shot; pillows muffled the shots | Townsend | Unverified; not confirmed by police. | Weak |
| A theory naming a relative, neighbor, or club member | Townsend | Unverified; disputed by the family. | Weak |
What would settle it
- Find any retained evidence (cords, bullets, fingerprint cards) and test it with current methods.
- Re-read the 1969 interviews and polygraphs against what is now known.
- Ballistics. Compare the bullets or casings with any weapon later recovered in the area.
A planned crime by someone who knew the house
We put the chance that the killer knew the family or the household at roughly 70%, because there was no forced entry and the children were spared. We put the chance that more than one person was involved at roughly 45%, since three adults were controlled and bound. Neither can be tested without retained evidence.
Editorial judgment, not statistics.
Elimination matrix
"—" means no public information, not a clean result.
| Idea | Knew the family | Physical link | Official status |
|---|---|---|---|
| Relative tied to the workplace | ? alleged | — none published | — not named by police |
| Erratic neighbor | ? alleged | — none published | — not named by police |
| Country-club acquaintance | ? alleged | — none published | — not named by police |
| Manson-related killers | ✗ no link | — | ✗ checked by letter, nothing found |
| Bricca killer | ✗ no link | — | ✗ ruled out by police |
✗ excluded or contradicted · ✓ supports · ? disputed · — nothing public. No cell is an official finding.
Our hypothesis
Editorial reading of public records. A working theory, not a finding, and it names no individual.
Targeted, planned, and cleaned up, by someone who either knew the household or had a reason to be there
- This was not a robbery. Nothing was taken that police could identify, and the house was not ransacked.
- The killer controlled three adults. Binding and moving three people suggests a weapon, planning, or more than one person.
- The cleanup was deliberate. A wiped scene suggests someone who thought about evidence.
- The best path is the family and workplace record. A fresh look at Martin Dumler's business and personal contacts is not public.
Judgment, not statistics.
Missing links
Questions raised by gaps in the public record.
1. Retained evidence
Whether any cords, bullets, or fingerprint cards survive and have been retested.
2. The 20 polygraphs
Who was tested, and whether results were reviewed again.
3. The 100 interviews
A summary of who was interviewed and cleared.
4. The stolen revolver
Whether the reported theft two days earlier was investigated.
5. Martin's workplace
Records of his employer and colleagues in 1969.
6. The tip to Crime Stoppers
What the family and detectives did with the tip sent about 15 years before 2021.
7. The children's accounts
What, if anything, the children remembered. One has died and the other has not spoken publicly.
8. A cross-case review
A check against other 1960s–70s Cincinnati-area homicides with bound victims.
Evidence gaps
"Not public" means we could not find a report.
| Item | Tested | Gap |
|---|---|---|
| Fingerprints | Found only the victims'. | No unidentified prints reported. |
| Bullets or casings | Presumably collected. | Ballistics results: not public. |
| Cords | Used as restraints. | Whether kept: not public. |
| Police file | Held by Cincinnati Police. | Public index: not available. |
Forensic tech
| Tool | What it could do | Status here |
|---|---|---|
| DNA from cords or clothing | Identify a donor if anything was kept. | Not reported |
| Forensic genetic genealogy | Identify an unknown donor. | Needs DNA; none reported |
| Ballistics database (NIBIN) | Link any recovered bullets to other crimes. | Not reported |
| Records digitization | Search old business and court records. | Available |
Solved cases
Local cases that moved after decades.
Carol Sue Klaber (Boone County, KY, 1976)
Investigators say a private genealogy investigation helped them identify Thomas Dunaway, who died in 1990, as the man who killed the 16-year-old. He cannot be indicted, so prosecutors sent a letter saying he would have been charged. The lesson: genealogy can name a killer after decades, even when no trial is possible.
Forensic genetic genealogy training
In 2024, local investigators were being trained in the technique, which has already helped solve Cincinnati-area cases, according to FOX19. The lesson: the tool is now local, so cases with usable DNA have a real path forward.
Golden State Killer
Old crime-scene DNA matched relatives in a public database and led to a 2018 arrest. The lesson: a usable sample can still work after decades.
Case details come from public news coverage and the Boone County Sheriff's cold-case list. Confirm in court records.
False leads
| Claim | Source and date | Where it stands |
|---|---|---|
| The killers were connected to the Manson murders | 1969 speculation | Police wrote to other agencies; nothing linked. |
| The Dumler and Bricca murders were connected | Local speculation | Police met with the Hamilton County Sheriff and ruled it out. |
| Patricia was not the target; Mary Wilson was collateral | J.T. Townsend | Unverified; disputed by the family. |
| Martin was seen in an agitated conversation the day before | J.T. Townsend | Unverified. |
Where
The family lived on Beverly Hill Drive in Mount Lookout, a neighborhood on Cincinnati's east side.
Open in maps: Mount Lookout, Cincinnati. We show no photograph of the scene.
Source ratings
| Source | Type | Rating | Use with care because |
|---|---|---|---|
| Cincinnati Police statements | Agency | A | Brief; do not give details. |
| FOX19 / WXIX, 2021 | Local news | B+ | Includes unverified claims by an author and a family rebuttal. |
| Books and podcasts (J.T. Townsend) | Advocacy | D | The family says it was not consulted. |
Records
Cincinnati Police Department
Lead agency; cold-case homicide detectives.
Hamilton County Prosecutor
Prosecution records.
Hamilton County Coroner
Autopsy records.
Sample public-records request
Under the Ohio Public Records Act, I request copies of non-exempt records relating to the October 1969 homicides of Martin Dumler, Patricia Dumler, and Mary Wilson in Mount Lookout, including incident reports, laboratory reports, and any evidence inventory. Please send electronic copies. If any part is withheld, please identify the exemption relied on and release all reasonably segregable material.
Agencies often withhold records of open investigations, so expect partial answers.
Remembering the victims
Three adults were killed in their home, and two small children had to be told they could not wake their parents. They lost everything that night.
News & databases
In the news
Loading headlines…
Sources
Every fact on this page comes from one of these. Where they disagree, we say so above.
- "Mind-boggling" Mount Lookout murder mystery remains unsolved 52 years later, FOX19 / WXIX (all facts on the crime, police actions, theories, and the family statement).
Almost every detail comes from one FOX19 report. The claims about stabbing, pillows, a stolen gun, and the three theories come from author J.T. Townsend and are unverified; the family disputes them. We did not find the victims' ages.
Change log
- Oct 8, 2026: File published.