Overview

Last seen: June 15, 2013
Location: Sheridan, Wyoming
Age: 23
Status: Still missing
Classification: Endangered missing / missing under suspicious circumstances
NamUs: MP22596
Law-enforcement case: 13-05115

Shannon was reportedly dropped off at a Walmart at approximately 3:00 a.m. Her husband and father-in-law said she intended to stay with her sister, but Shannon never arrived at her sister’s residence and has not been confirmed seen or heard from since. Investigators later reviewed Walmart surveillance footage but reportedly could not establish from the video that Shannon had actually arrived at the store.

Detailed Case Breakdown

Shannon Nicole McClure: The Unsolved 2013 Disappearance in Wyoming

Shannon Nicole McClure was 23 years old when she disappeared in Sheridan, Wyoming, during the early morning hours of June 15, 2013. More than thirteen years later, she remains missing, and publicly available records continue to classify her disappearance as an endangered or suspicious missing-person case. No arrest, confirmed recovery, or publicly identified suspect has resolved what happened to her.

Very Brief Case Summary

Last seen: June 15, 2013
Location: Sheridan, Wyoming
Age: 23
Status: Still missing
Classification: Endangered missing / missing under suspicious circumstances
NamUs: MP22596
Law-enforcement case: 13-05115

Shannon was reportedly dropped off at a Walmart at approximately 3:00 a.m. Her husband and father-in-law said she intended to stay with her sister, but Shannon never arrived at her sister’s residence and has not been confirmed seen or heard from since. Investigators later reviewed Walmart surveillance footage but reportedly could not establish from the video that Shannon had actually arrived at the store.

The Early-Morning Disappearance of Shannon McClure

According to published case information, Shannon was with her husband and father-in-law during the early morning of June 15, 2013. At approximately 3:00 a.m., they reportedly dropped her off at a Walmart in Sheridan.

The explanation given was that Shannon wanted to stay with her sister. Later accounts indicate that the decision was described as abrupt and that her sister had not been expecting Shannon. Shannon never made it to her sister’s home, and there has been no verified contact with her since that morning.

Shannon Was Reported Missing

Shannon’s family reported her missing on June 17, 2013, two days after her reported disappearance.

Her disappearance was considered out of character. At the time, Shannon was the mother of a 14-month-old son and was also part of the lives of three stepdaughters. Relatives and case summaries have indicated that suddenly abandoning her family and remaining completely out of contact would have been unusual for her.

What Did the Walmart Surveillance Video Show?

One of the most significant publicly reported pieces of investigative information concerns surveillance footage from the Walmart where Shannon was reportedly dropped off.

Detectives reviewed surveillance video from the night she disappeared. However, investigators were reportedly unable to determine whether Shannon actually arrived at the Walmart.

That detail leaves a major unanswered question in the case. The Walmart is repeatedly described as Shannon’s last known or reported destination, but available public reporting does not establish an independently verified sighting of Shannon entering the store.

Limited Money and Few Apparent Resources

Authorities reportedly believed Shannon did not have access to credit cards when she disappeared. If she was carrying cash, investigators believed it would have been only a relatively small amount.

No publicly documented trail of financial activity, confirmed travel, subsequent employment, communication with relatives, or verified sighting has emerged in the sources reviewed for this article.

What Shannon Was Wearing

Shannon was approximately 5 feet 3 inches to 5 feet 4 inches tall and weighed approximately 230 to 240 pounds. She had brown hair, blue eyes and pierced ears. She wore eyeglasses and had a Caesarean-section scar on her abdomen.

She was reportedly wearing a navy blue pullover or sweatshirt bearing “2008” in white lettering, dark-colored sweatpants, white sneakers or tennis shoes, and her glasses when she disappeared.

Why the Case Is Considered Suspicious

Public case summaries describe Shannon as missing under suspicious circumstances or as an endangered missing person. Despite those classifications, authorities have not publicly announced that Shannon was murdered, and her case should not be described as a confirmed homicide unless law enforcement changes that classification.

No person has been publicly charged with causing Shannon’s disappearance in the sources reviewed, and no official source located for this article publicly names a suspect.

Questions That Remain Unanswered

More than a decade after Shannon disappeared, several basic questions remain unresolved publicly: Was Shannon actually at the Walmart that morning? If she was, where did she go afterward? If she never reached the store, where and when was she last independently seen? Why has there been no verified communication from her since June 2013?

The available investigative reporting is unusually limited for a case that has remained unresolved for more than thirteen years.

Online Discussion and Unverified Claims

Shannon’s disappearance has generated discussion on Websleuths, Reddit, missing-person groups and other online communities. Some posters have offered theories involving people who knew Shannon or circumstances surrounding the reported Walmart drop-off. Those claims have not been publicly substantiated by law enforcement and should not be treated as established facts.

A May 2026 Reddit comment from a person who said their family had known Shannon and her siblings for years expressed the belief that Shannon would never voluntarily abandon her children. The commenter also offered personal theories about what may have happened. Those statements are useful for understanding continued community concern but remain anecdotal and unverified.

Latest Publicly Available Investigation Information

As of August 2026, Shannon Nicole McClure remains listed in active public missing-person resources. The Wyoming Division of Criminal Investigation continues to maintain a dedicated missing-person page for Shannon, and the Doe Network continues to list her as case 3426DFWY. CaseTrace also continues to display Shannon among Wyoming’s missing persons using the official NamUs case number 22596.

A newly published missing-person article dated April 13, 2026 continued to identify Shannon as still missing. That article repeated that detectives reviewed Walmart surveillance video without being able to determine whether Shannon arrived at the store. It also continued to direct tips to the Campbell County Sheriff’s Office and listed agency case number 13-05115.

No credible public source located through August 26, 2026 reports that Shannon has been found, that remains have been identified as hers, that an arrest has been made, or that authorities have publicly identified a suspect.

More Than Thirteen Years Without Answers

Shannon was only 23 when she disappeared. What began with a reported 3:00 a.m. drop-off in Sheridan has become a long-running Wyoming missing-person investigation with remarkably few publicly released answers.

The continued presence of her case in Wyoming DCI records, NamUs-linked resources and the Doe Network means Shannon has not simply become a forgotten historical case. Her disappearance remains unresolved, and information capable of establishing where she went after June 15, 2013—or whether she ever reached the Walmart at all—could still prove significant.

Anyone with information about Shannon Nicole McClure’s disappearance should contact the Campbell County Sheriff’s Office and reference case 13-05115 and NamUs MP22596.