Shemika Cosey

Case Information:

Shemika Cosey was 16 years old when she vanished from her aunt’s residence in Berkeley, Missouri, in the early morning hours of December 29, 2008. The high school student had spent the evening at a home on Fox Creek Drive, where family members last saw her before waking up to find the front door unlocked and Shemika gone.

While her purse and jacket were missing from the scene, all of her other belongings and clothing remained inside, suggesting a sudden or coerced departure. With no signs of a struggle and no cell phone to track, her disappearance immediately became a baffling mystery for the St. Louis County community.

Case Details:

Known to her loved ones as “Mika,” Shemika Cosey was a young woman with deep ties to both the Berkeley and East St. Louis, Illinois areas. Her family has consistently maintained that she was not the type of person to remain out of contact for any significant length of time, especially with her mother.

In the years following her disappearance, it was revealed that Shemika had been in and out of the house several times on the night she vanished, possibly meeting someone outside. This detail, combined with the lack of any forensic trail, has led her family to fear she may have fallen victim to foul play or human trafficking.

Timeline of Events:

Between 1:30 a.m. and 8:30 a.m. on that cold December morning, Shemika Cosey stepped out of the Fox Creek Drive home for the last time. When her aunt awoke at approximately 9:00 a.m. and noticed the front door was unsecured, the search for the teenager began in earnest.

A notebook later discovered by her mother suggested Shemika may have been dealing with a potential pregnancy and a secret boyfriend at the time of her disappearance. While investigators interviewed the young man mentioned in her writings, no evidence was found to link him to her vanishing, leaving the timeline stagnant for over a decade.

Investigation:

The Berkeley Police Department initially classified the case as an endangered runaway, a designation that the family believes hindered the urgency of the early search. Over the years, the investigation has shifted toward suspected foul play, with multiple law enforcement agencies conducting interviews across state lines.

In late March and early April of 2026, the case saw a major spike in activity when investigators conducted an excavation on Jefferson Avenue. While the search did not immediately yield human remains, the use of ground-penetrating radar and forensic teams proved that the case of Shemika Cosey is far from cold.

Community Response:

The Berkeley community has remained a pillar of support for her mother, Paula Hill, who has spent seventeen years advocating for her daughter’s return. From annual vigils to large-scale flyer distributions, local residents refuse to let Shemika’s name fade from the public consciousness.

Advocacy groups like the National Center for Missing & Exploited Children have consistently featured Shemika’s profile, providing age-progressed images to show what she might look like as an adult. These efforts are crucial in reaching people in Illinois and beyond who may have met her under a different name.

Family Statements:

Paula Hill has been a vocal critic of the initial police response, asserting that her daughter’s journals were a cry for help that went ignored for too long. She has publicly stated that Shemika was a “homebody” who would never have abandoned her family or her life willingly without a trace.

The family remains hopeful that the recent 2026 forensic activities will finally provide the “missing piece” needed to solve the case. They continue to plead for anyone who was in the Fox Creek Drive area that night to recall even the smallest interaction that seemed insignificant at the time.

Physical Appearance:

Shemika Cosey is an African American female with black hair and brown eyes, standing between 5’2″ and 5’5″ tall and weighing approximately 135 to 150 pounds. She has a notably light complexion and was last seen wearing a black jacket and carrying a purse.

At the time she vanished, Shemika had a distinct youthfulness and a quiet demeanor that made her stand out to those in her social circle. Her current appearance, as a woman in her early thirties, has been projected through forensic artistry to help the public identify her today.

Current Status:

As of April 17, 2026, the disappearance of Shemika Keyanta Cosey is an active investigation being worked by the Berkeley Police Department. The recent searches in Berkeley have reignited public interest and brought a new level of forensic scrutiny to the case.

Authorities are currently reviewing the evidence gathered during the 2026 excavation and continue to solicit tips from the public. Her case remains listed with the Missouri State Highway Patrol as a high-priority missing persons investigation with suspected foul play.

Contact Information:

If you have any information regarding the whereabouts of Shemika Cosey, please contact the Berkeley Police Department at 314-524-3311.

You can also provide anonymous information to the National Center for Missing & Exploited Children at 1-800-THE-LOST (1-800-843-5678) or through the Missouri State Highway Patrol tip line.

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