Gary Thatcher

Lafayette Police Detective Gary Thatcher started investigating Scott Kimball as part of a check-fraud case in 2006.

Lafayette police detective Gary Thatcher stands in front of the 801 S. Public Road building that in 2005 housed the offices of Cleve Armstrong, Barb Kimball and Scott Kimball. (Kasia Broussalian/Camera)

Lafayette police detective Gary Thatcher stands in front of the 801 S. Public Road building that in 2005 housed the offices of Cleve Armstrong, Barb Kimball and Scott Kimball. (Kasia Broussalian/Camera)

Lafayette police detective Gary Thatcher is assigned to investigate the Cleve Armstrong check-fraud case.

He starts looking for Kimball, but to no avail.

Scott Kimball’s basement office at 801 S. Public Road. (Courtesy of Lafayette police)

Scott Kimball’s basement office at 801 S. Public Road. (Courtesy of Lafayette police)

Lafayette police detective Gary Thatcher searches the basement of 801 S. Public Road in Lafayette, where Scott Kimball had been running a beef business.

He finds sheets of practice signatures; bogus subpoenas regarding the assault case against Kimball’s wife; and a counterfeit lien release for a Jeep — complete with company letterhead and an altered seal from his mother’s notary stamp — that Kimball had used to cash in on insurance proceeds after wrecking the vehicle the previous month.

Kaysi McLeod, at 16. (Courtesy of Rob McLeod)

Kaysi McLeod, at 16. (Courtesy of Rob McLeod)

In investigating Scott Kimball for stealing $55,000 from optometrist Cleve Armstrong, Lafayette police Detective Gary Thatcher interviews Kimball’s now-estranged wife, Lori McLeod, and learns that her daughter has been missing for more than two years.

Lori McLeod says she has long suspected that her husband played a role in Kaysi’s disappearance.

Equipment reported stolen along with the trailer. (Courtesy Lafayette police)

Equipment reported stolen along with the trailer. (Courtesy Lafayette police)

Lafayette police detective Gary Thatcher finds the trailer reported stolen by Scott Kimball the previous December hidden at Kimball’s former Adams County home.

Kimball had already collected $10,000 in insurance claims.

Boulder County prosecutors Katharina Booth, left, and Amy Okubo, dubbed by Scott Kimball as "the Boulder bitches," pose in Courtroom Q at the Boulder County Justice Center. (Marty Caivano / Camera)

Boulder County prosecutors Katharina Booth, left, and Amy Okubo, dubbed by Scott Kimball as "the Boulder bitches," pose in Courtroom Q at the Boulder County Justice Center. (Marty Caivano / Camera)

Boulder County prosecutors Amy Okubo and Katharina Booth, assigned to the Lafayette check-fraud case against Scott Kimball, meet with the U.S. Attorney’s Office and the FBI in Denver, asking for a wider investigation.

Lafayette police Detective Gary Thatcher had found out about Kaysi McLeod’s disappearance, and had also been told by FBI Special Agent Carle Schlaff that Kimball might be connected to the disappearance of Jennifer Marcum.

But neither federal agency launched a missing-persons probe.

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Boulder County Jail. (Camera file photo)

Boulder County Jail. (Camera file photo)

Lafayette police detective Gary Thatcher interviews Scott Kimball for the first time, while Kimball is held in Boulder County Jail for a brief period.

The conversation centers on optometrist Cleve Armstrong’s check-fraud case.

A check forged on Cleve Armstrong's account. (Courtesy Lafayette police)

A check forged on Cleve Armstrong's account. (Courtesy Lafayette police)

Boulder County issues a warrant for Scott Kimball’s arrest on suspicion of theft, forgery and false reporting.

The charges stemmed from the theft of $55,000 from Lafayette optometrist Cleve Armstrong.

In the course of that investigation, police also found a trailer on Kimball’s former property that he had reported stolen two months earlier.

Kimball had already collected a $10,000 insurance claim for the trailer.

Bob Marcum mug

Bob Marcum.

Rob McLeod.

Rob McLeod.

Bob Marcum and Rob McLeod meet with Lafayette police Detective Gary Thatcher, who is investigating Kimball for check fraud, about their missing daughters.

They ask to have a bone pit on Kimball’s cattle pasture searched for human remains, but police find nothing.

The two fathers also meet with the FBI at the bureau’s Denver office and explain the similarities in their daughters’ cases. They tell the FBI about Terry Kimball, too, saying they don’t buy that he ran off to Mexico.

“You can look into this and see if it goes anywhere, or you can choose not to,” McLeod tells the bureau. “It’s your choice.”

FBI Special Agent Jonathan Grusing. (Marty Caivano/Camera)

FBI Special Agent Jonathan Grusing. (Marty Caivano/Camera)

After Bob Marcum and Rob McLeod meet with the FBI about their missing daughters, Special Agent Jonathan Grusing is assigned to investigate the missing-persons cases surrounding Scott Kimball.

Working with Lafayette police detective Gary Thatcher, Grusing launches an exhaustive investigation, looking for clues that Kimball had transitioned from a white-collar criminal to a serial killer.

The receipt. (Courtesy of Lafayette police)

The receipt. (Courtesy of Lafayette police)

FBI Special Agent Jonny Grusing and Lafayette police Detective Gary Thatcher find a receipt from North Park Supers grocery store, dated Aug. 24, 2003 — the day after Kaysi McLeod vanished — in boxes of old documents and receipts belonging to Scott Kimball.

They also find Kaysi’s date book and a map of the North Park area.

Kimball's Montana Department of Corrections mug.

Kimball's Montana Department of Corrections mug.

Scott Kimball is interviewed by FBI Special Agent Jonathan Grusing and Lafayette police detective Gary Thatcher at the Cascade County Detention Facility in Great Falls, Mont.

Asked about the disappearances of Jennifer Marcum, Kaysi McLeod and Terry Kimball, he offers to provide information about Jennifer and his uncle if given immunity for his white-collar crimes. Kaysi, he tells the investigators, is still alive.

During the six-hour interview, Kimball makes statements like: “I can’t incriminate myself any further” and “I wish I could be honest with you.”

Investigating Jennifer Marcum’s disappearance, FBI Special Agent Jonathan Grusing and Lafayette police detective Gary Thatcher interview Steve Ennis, who shared a cell with Scott Kimball at FCI-Englewood while dating Jennifer.

Ennis — being held at a federal prison in Seagoville, Texas — tells the investigators of another former FCI-Englewood inmate with an eerily similar story.

Steven Holley

Steven Holley

Like Ennis, this inmate had become friends with Kimball behind bars in 2002. Like Ennis, he had put Kimball in touch with a girlfriend upon his release.

Both women went missing within weeks.

Talk to Steven Holley, Ennis told the investigators.

Holley, the inmate who had dated LeAnn Emry, had never had his own plea for an FBI interview granted.

Steven Holley

Steven Holley

FBI Special Agent Jonathan Grusing and Lafayette police detective Gary Thatcher interview Steven Holley at the federal prison in Florence, Colo.

They learn that his girlfriend, LeAnn Emry, had been with Scott Kimball in the month before she disappeared on Jan. 29, 2003.

Holley, who spent time in the same unit as Kimball at FCI-Englewood in 2002, said Kimball went by the name “Hannibal.”

Kimball's mug shot. (Rocky Mountain News)

Kimball's mug shot. (Rocky Mountain News)

Boulder County prosecutors make a deal with Scott Kimball.

He pleads guilty to stealing $55,000 from Lafayette optometrist Cleve Armstrong as a habitual offender, and is sentenced to 48 years in prison.

In exchange, prosecutors draw up a memorandum of understanding in the missing-persons case. If he will lead investigators to the bodies of Jennifer Marcum, LeAnn Emry and Terry Kimball, he will only face a single count of second-degree murder.

They will otherwise pursue a first-degree murder conviction, punishable by life in prison without parole or the death penalty. But that will be difficult with only one set of remains — Kaysi McLeod’s — that show no evidence of the cause or manner of death.

For prosecutors Amy Okubo and Katharina Booth, the deal represents their only chance of finding the missing victims.

“Unfortunately, we couldn’t do that without his help,” Booth said. “It was a deal with the devil.”

Read the Rocky Mountain News article.

When Terry Kimball's body is returned to his family, he will be buried next to his parents in Lafayette Cemetery. (Paul Aiken / Camera)

When Terry Kimball's body is returned to his family, he will be buried next to his parents in Lafayette Cemetery. (Paul Aiken / Camera)

With the snow melted in Colorado’s high country, a search party follows a map drawn by Scott Kimball to a logging road near Vail Pass.

There, Lafayette police Detective Gary Thatcher finds Terry Kimball’s body wrapped in a gray tarp. He appears to have been shot through the head.

A bullet fragment found at the scene is later found to be consistent with Scott Kimball’s .40-caliber Firestar handgun.