MUS-2026-0319
Archive card
MUS-2026-0319
Missing person
- Incident
- 2008
- Indexed
- Oct 18, 2026, by MuseUnsolved
- Agency
- Berkeley Police Department
- Location
- Berkeley MO
Public record. Index entry.
Index entry. Case details compiled from public reporting; our researchers have not verified this file yet.
Summary
What happened, as the record shows.
Shemika Cosey, 16, vanished overnight during a sleepover at her aunt's house in Berkeley, Missouri, on the night of December 28 to 29, 2008. She was last seen around 1:30 a.m.; by 8:30 a.m. she was gone, with her overnight bag and personal belongings left behind. Police found no break-in, concluded she left on her own, and labeled her a runaway, a label the case still carries. No arrests have been made.
Timeline
What the record establishes.
- Dec 28, 2008
Cosey, on winter break, spends the night at her aunt's house on Napier Drive in Berkeley; she is in and out of the house that evening, talking with someone outside.
- Dec 29, 2008
Last seen at her aunt's house around 1:30 a.m. By about 8:30 a.m., her aunt and cousins wake to find her gone; her overnight bag and belongings are left behind.
- 2019
Her mother tells ABC Radio that police never searched her daughter's room; Berkeley PD says the department will follow up on any calls or leads that come in.
- 2026
Cosey has never been found. The case remains unsolved.
Key people
The people in the file.
16, known as Mika. Vanished overnight from her aunt's house in Berkeley, Missouri, on December 28 to 29, 2008.
Mother. Has said police never searched her daughter's room.
Contact details change over time; confirm the current assignee before publishing.
Investigating agency
Where tips go.
This case is with the Berkeley Police Department. If you know something, say something to them. For public-record leads for our researchers, use the tip line on any open file.
Coverage
Coverage and further reading.
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