The bayous of Houston are meant to carry floodwater through one of America’s biggest cities, but nowadays they are transporting something different.
Bodies.
On August 11 Houston police were contacted at the banks of Buffalo Bayou close to Nance Street after a second man’s body was found.
They stated that the remains were in an advanced state of decomposition and displayed no apparent signs of trauma. The man was subsequently identified as Carl Mueller, a 73-year-old man who had been reported as missing less than two weeks before.
A day before that, a man had also been found dead in Brays Bayou close to the Gulf Freeway, and the investigators stated that there were no obvious external injuries which could account for his death.
There were two discoveries, occurring two days apart in the Houston bayous.
This pattern is such that the cases in question are merely the most recent examples and has become increasingly difficult to dismiss as being ordinary.
The Numbers Changed
Death cases have always occurred in Houston’s waterways, the city being built around a huge network of bayous, drainage channels and flood-control infrastructure.
The only thing that has changed is the frequency.
The medical examiner’s records for Harris County obtained by KPRC indicate that there were 20 deaths in the Bayou area in 2017, 18 in 2018, 12 in 2019, 27 in 2020, 16 in 2021, 20 in 2022 and 22 in 2023.
Then came 2024.
That year thirty-five people were discovered dead in the bayous around Houston and an additional 34 were recorded in 2025.
From 2017 to 2023 the average number of bayou deaths in Houston was about 19 each year. The figure for 2024 was about 82 per cent higher than the earlier average, and the number in 2025 was approximately 76 per cent higher.
That is not a slight increase.
Buffalo Bayou exhibited an even more remarkable pattern.
Data obtained by KPRC from the Houston Police Department revealed that six bodies were recovered there in 2015, five in 2016, one in 2017, five in 2018, two in 2019, seven in 2020, three in 2021, seven in 2022 and four in 2023.
The number of times Buffalo Bayou was recorded in 2024 was nine.
In 2025, a total of 12 bodies were retrieved from Buffalo Bayou, which is the highest number in at least ten years of HPD data.
That is important since the average number of bodies from 2015 to 2023 was only around 4.4 per year.
Twelve is about three times as much.
A significant limitation applies when making the wider historical comparison since Harris County only started regularly recording bayou recoveries under its present system in 2017, which means the earlier countywide figures cannot be compared on the same basis.
However, when looking at the period for which comparable records are available, 2024 and 2025 are unlike the others.
The Most Unsettling Number Is 40%
It is not the number of bodies alone that accounts for the rise in public suspicion.
It is not known how many of these people died.
The data on bayou deaths that KPRC examined from Harris County, covering the period from 2017 up to February 2026, included 208 cases.
Of these, 84—amounting to 40.4 per cent—had an undetermined manner of death.
Four十七 of the cases were due to accidental drownings, 25 were suicides, 18 were homicides, 12 were the result of other accidents and seven were caused by natural deaths. At the time the data were compiled, seven of the cases were still pending.
The cause of death also presents an incomplete account of the circumstances.
In the 208 cases, 69 had an undetermined cause and 62 were said to have died from drowning.
It by no means implies that 40% of the cases are suspected murders.
What it means is that it is at times impossible for investigators to be certain about what took place on the basis of medical evidence.
The presence of water makes that problem much worse.
Erin Barnhart, the chief medical examiner for Galveston County, stated in an interview with the Houston Chronicle that bodies which have been submerged can lose important contextual information as they drift and decompose, since Houston’s hot climate speeds up the decomposition process and the water might separate the body from its personal effects, any witnesses, or the location where the fatal incident actually took place.
It is possible that the person who was found in Buffalo Bayou did not enter the bayou in the area where the body was finally recovered.
The water then becomes part of the mystery.
In April, when another body was found in Buffalo Bayou, HPD Detective Mike Nicotra observed that the recent rainfall and the high water levels might have caused the body to have been moved from somewhere else.
The bayou goes beyond simply hiding evidence.
It can move it.
There Are Plausible Explanations, But None Explains Everything
The authorities in Houston have been clear on one theory that is popular.
It is said that there is no evidence of a serial killer who is responsible for the deaths.
Sean Teare, the district attorney for Harris County, said to KPRC that the investigators had found no evidence to suggest that a serial killer was operating in Houston and had instead pointed to a combination of homelessness, mental-health issues, and substance abuse.
The explanation is supported in part by evidence.
An investigation carried out by the Houston Chronicle discovered that drugs or alcohol had caused or played a part in at least 17 deaths in the bayou area since 2017; heart conditions were responsible in 11 cases, seven involved motor-vehicle accidents, and drowning was the main established cause.
The waterways in Houston also pass straight through densely built-up urban areas, and the data from the county indicate a particularly high number of deaths linked to the ZIP codes 77002, 77003 and 77023, which include Downtown and the areas located east and southeast of the city centre.
This brings fast-moving water, steep banks, bridges, paths, and populations who are vulnerable together in an unusual way.
Flooding introduces yet another factor.
The bayous in Houston can change very quickly following heavy rain. A person who has fallen into water that appears to be calm might in fact be facing currents, debris and conditions quite different from those in a swimming pool.
There is as well an issue concerning safety infrastructure.
The Houston Chronicle discovered that no one organisation has overall responsibility for safety in the bayou system; some sections are protected by barricades, others have lighting or are subjected to surveillance, the Houston Parks Board has put up emergency markers, and the Buffalo Bayou Partnership looks after lighting and carries out private patrols in certain areas, but the level of protection is not the same throughout the system.
Each of these explanations might be responsible for individual deaths.
The more difficult question is this: do they give an explanation for the sudden sharp rise in the annual total?
2026 Has Not Repeated the Record, But the Bodies Keep Appearing
There’s one significant point to give you comfort.
Up to now, the year 2026 is not keeping up with the exceptional speed of 2024 or 2025.
KPRC stated that by July 22 at least 10 bodies had been found in the bayous and waterways in the Houston area, and the number raised to at least 12 by mid-August as a result of the discovery in Brays Bayou on August 10 and the recovery from Buffalo Bayou on August 11.
It is still much lower than the 35 recorded in 2024 and the 34 in 2025.
However, the latest cases have kept the issue open.
No credible evidence links all of these deaths to a single killer, a single criminal group or a single cause; on the contrary, the records suggest that such a simple explanation is unlikely.
In some cases the victims drowned, in others they committed suicide, and in some the deaths were due to drug use. There are at least 18 cases in the historical dataset which are listed as homicides and a large number of the deaths are still undetermined.
The mystery is in fact more complicated than the rumours indicate.
There is no evidence that Houston has a hidden killer who is prowling its bayous.
All that Houston has is a noticeable change in its figures, with numerous deaths that have no definite explanation, inconsistent safety measures, and families who on occasion get no clear explanation as to how their relatives ended up in the water.
This might not be as cinematic as the theories that are spreading online.
It is even more concerning.
The main question which has not yet been answered is not anymore whether Houston has a ‘bayou killer’.
This is the reason why so many more people started dying in the bayous around the city initially.