20/20 Tonight

Who Was Mike Williams & What Happened to Him? 2026 Update & Profile

by · September 17, 2026

For nearly 17 years, the disappearance of Jerry Michael “Mike” Williams looked like a baffling Florida wilderness mystery.

Williams was 31 years old when he vanished on December 16, 2000. A husband, father and successful real estate appraiser from the Tallahassee area, he was believed to have gone duck hunting on Lake Seminole, near the Florida-Georgia border. His vehicle was found near the lake. His boat was recovered. Williams himself was nowhere to be found.

The explanation that eventually took hold was grim but seemingly plausible: Williams had fallen into the lake, drowned and perhaps been consumed by alligators.

His mother never believed it.

She was right.

Williams had not disappeared into Lake Seminole at all. He had been killed by one of his closest friends, Brian Winchester, as part of a plot connected to Winchester’s secret relationship with Williams’ wife, Denise.

The truth would emerge only after another violent crime, the collapse of Denise and Winchester’s marriage and a confession that finally led investigators to Williams’ hidden remains.

Who Was Mike Williams?

Jerry Michael Williams, generally known as Mike, was born October 16, 1969, and grew up in the Tallahassee area.

He attended North Florida Christian School and later Florida State University. By adulthood, Williams had established himself professionally as a real estate appraiser.

He and Denise Merrell had known each other since high school and married in 1994. Their daughter was born in 1999.

Williams was also an experienced outdoorsman. Duck hunting was not an unfamiliar weekend adventure for him; he had hunted since he was young and knew the hazards of Florida waterways.

That experience became one reason some of the people closest to Williams had difficulty accepting the story of his disappearance.

What Happened to Mike Williams?

On the morning of December 16, 2000, Williams supposedly headed to Lake Seminole for a duck hunt.

It was his sixth wedding anniversary.

When he failed to return, a search began. His Ford Bronco was located near a boat landing and his boat was subsequently found on the lake.

But there was no Mike.

Searchers combed the lake without recovering his body. Investigators initially believed he had suffered a boating accident and drowned.

The absence of remains eventually produced another explanation: alligators might have consumed his body.

There were problems with that theory. Williams disappeared during December, when colder temperatures substantially reduce alligator activity and feeding. Questions also arose about whether an experienced hunter such as Williams would have behaved in the manner required by the proposed accident scenario.

Then, months after his disappearance, hunting equipment associated with Williams surfaced.

Rather than solving the mystery, its discovery eventually generated still more questions.

The Woman Who Wouldn’t Stop Looking

Mike’s mother, Cheryl Williams, became the most persistent public voice challenging the official explanation.

She did not accept that her son had simply fallen into Lake Seminole and vanished.

For years, Cheryl contacted law enforcement and government officials, circulated information, purchased advertisements and pushed for the case to receive further investigation.

Her campaign was remarkable partly because she could not prove what she believed.

There was no body.

There was no established murder scene.

And there was no publicly identified killer.

What Cheryl had was the conviction that the explanation for her son’s disappearance did not make sense.

The Florida Department of Law Enforcement eventually began investigating the case again.

But even as suspicions grew, investigators faced a serious problem: the original disappearance had not been handled as a homicide.

Years had passed. Potential evidence had been lost or disturbed. Investigators could identify inconsistencies, but inconsistencies were not enough to solve a murder.

The Secret Behind Mike’s Marriage

The eventual explanation for Williams’ death began not at Lake Seminole but inside his circle of friends.

Brian Winchester was one of Mike’s close friends.

Their families knew one another. Brian was married to Kathy Thomas Winchester, while Mike was married to Denise.

Unknown to Mike, Brian and Denise had become romantically involved.

Evidence later presented in court established that the relationship developed into an affair beginning years before Mike disappeared.

Winchester would eventually testify that he and Denise discussed killing Mike so that they could be together.

There was also a significant financial component surrounding Williams’ death.

Winchester worked in insurance and had sold life-insurance policies covering Mike. After Williams was declared legally dead, Denise received approximately $1.75 million in insurance proceeds, according to Florida appellate records.

But for years, none of this was enough to establish what had actually happened on the lake.

Denise Eventually Married Mike’s Friend

Five years after Williams vanished, Denise and Brian Winchester married.

To outsiders already suspicious of the disappearance, the development was extraordinary: Mike’s widow had married one of his close friends, a man who had also been involved with his life insurance.

It still wasn’t proof of murder.

The secret that had survived Mike’s disappearance ultimately began unraveling because Denise and Winchester’s own relationship collapsed.

They separated, and Denise filed for divorce.

Then, in 2016, Winchester committed the crime that finally gave investigators leverage over a man who knew exactly what had happened to Mike.

The Kidnapping That Broke the Case

In August 2016, Winchester confronted Denise while armed.

He had concealed himself in her vehicle and emerged after she got inside. The encounter led to Winchester being prosecuted for kidnapping.

He ultimately received a 20-year prison sentence followed by 15 years of probation.

More importantly for the Williams investigation, Winchester began cooperating with authorities.

And after more than 16 years of silence, he told them what had happened on December 16, 2000.

Mike Had Gone Hunting With Someone He Trusted

According to Winchester’s later testimony, Mike wasn’t actually alone that morning.

Winchester had arranged to go hunting with him.

The supposed accident was a murder plan.

Winchester testified that he persuaded Mike to put on his waders and then pushed him into Lake Seminole, intending for Mike to drown.

But Mike didn’t drown.

He managed to grab onto a stump.

The plan was failing, and Mike was now alive in the water with the knowledge that his friend had just tried to kill him.

Winchester testified that he retrieved his shotgun.

He shot Mike in the head.

Why Mike’s Body Was Never Found in the Lake

The shooting created another problem.

Leaving Mike in Lake Seminole was no longer an option. If a body bearing a shotgun wound was recovered, the supposed boating accident would immediately become a homicide investigation.

So Winchester removed Mike’s body.

He later buried him in a remote area of Leon County.

That was the fundamental deception behind one of Florida’s strangest missing-person cases.

Searchers had spent their time looking for Mike in Lake Seminole because the killer had deliberately made the lake appear to be the place where he died.

Mike wasn’t there.

His remains would stay hidden for almost 17 years.

Investigators Finally Find Mike

After Winchester agreed to cooperate, he provided authorities with information about where he had disposed of Williams’ body.

Investigators searched the location in October 2017.

They found human remains.

DNA testing confirmed what Mike’s family had waited nearly 17 years to learn: the remains belonged to him.

The Florida Department of Law Enforcement publicly announced in December 2017 that Williams’ body had been recovered and that his death was being investigated as a homicide.

The presumed drowning was officially over.

What Happened to Denise Williams?

Authorities arrested Denise Williams in May 2018.

Prosecutors accused her of participating in the conspiracy that resulted in her husband’s death.

The central witness was Brian Winchester—the man who admitted actually killing Mike.

At Denise’s trial, Winchester described his affair with Denise, their discussions about killing Mike and what happened during the final hunting trip.

In December 2018, a jury convicted Denise of first-degree murder and conspiracy to commit first-degree murder.

She was subsequently sentenced to life imprisonment on the murder conviction and 30 years for conspiracy.

But that was not the final legal outcome.

Why Denise’s Murder Conviction Was Overturned

Denise appealed.

Florida’s First District Court of Appeal concluded that the prosecution had presented sufficient evidence to support the finding that Denise and Winchester had agreed to kill Mike.

That supported her conspiracy conviction.

But the court reached a different conclusion about her conviction as a principal to Mike’s actual murder.

The appellate court determined that the evidence did not satisfy Florida’s legal requirements for holding Denise criminally responsible as a principal for Winchester’s commission of the murder.

Her first-degree murder conviction was therefore reversed.

That distinction can easily become lost in retellings of the Williams case.

A jury did convict Denise of murder in 2018, but that conviction did not survive appeal.

Her conviction for conspiracy to commit first-degree murder did survive, along with the 30-year sentence associated with it.

What Happened to Brian Winchester?

Winchester admitted being the person who killed Mike.

Yet his eventual prison sentence came from a different crime.

His cooperation agreement provided protections relating to his truthful testimony about Williams’ death. Winchester’s 20-year prison sentence resulted from the armed kidnapping of Denise.

It creates one of the most unusual features of the case.

The admitted shooter helped investigators locate the victim and became the principal prosecution witness. Denise’s conspiracy conviction survived, but her murder conviction did not.

The homicide was finally solved, yet the legal consequences did not follow the straightforward pattern that might be expected after a confession to murder.

The Life Mike Williams Never Got to Have

The criminal case can obscure the person at its center.

Mike Williams was only 31.

His daughter was still a baby when he disappeared.

He left home on the morning of his sixth wedding anniversary believing he was going hunting with a friend. Instead, according to Winchester’s testimony, that friendship was used to get him into an isolated place where his death could be disguised as an accident.

For almost 17 years, even the basic truth of what happened to him remained hidden.

His family initially had no body to bury and no confirmed crime to explain his absence.

The story told about his final moments—that he had accidentally fallen from his boat and disappeared beneath Lake Seminole—was itself part of what concealed his killing.

His Mother’s Suspicion Became the Truth

Cheryl Williams spent years insisting that her son’s disappearance deserved another explanation.

Ultimately, virtually every essential element of the original drowning narrative collapsed.

Mike had not simply gone hunting alone.

He had not accidentally fallen from his boat.

He had not drowned.

Alligators had not made his body disappear.

And Lake Seminole was not where his remains had been hidden.

The apparent accident had been constructed to make people believe precisely those things.

It took the collapse of the relationship between Denise and Winchester, Winchester’s subsequent kidnapping conviction and his decision to cooperate with prosecutors before investigators finally obtained the information they had lacked for nearly two decades.

Mike Williams’ remains were recovered in 2017.

Seventeen years after he disappeared, his family finally knew where he was—and what had happened to him.

ABC’s 20/20 revisits the case in “Mr & Mrs Murder,” airing Friday, September 18, 2026, at 9/8c on ABC, with streaming availability through ABC and Hulu.

More “Mr & Mrs Murder”

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Ryan Gill

Ryan is a passionate follower of true crime television programs, reporting on and providing in-depth investigations on mysteries in the criminal world.

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