# Baltimore man convicted in Winchester murder case

> Baltimore man Marquis Mayo convicted of kidnapping and murdering David Winchester after body found in Annapolis
- Title: Baltimore man convicted in Winchester murder case · The Banner
- Summary: Baltimore man Marquis Mayo convicted of kidnapping and murdering David Winchester after body found in Annapolis Marquis Mayo received first-degree murder…
- Keywords: marquis mayo, david winchester jr, annapolis police, baltimore police, fbi, anne arundel county, first degree murder, kidnapping, wiley h. bates middle school, sp a road, news, local
- Source: The Banner — https://thebanner.com/community/criminal-justice/marquis-mayo-kidnapping-murder-MSMHDS3A2NDKHJVLYZQ4ZDVX4I
- Author: Banner Staff
- Published: 2026-09-21T22:28:50.502+00:00
- Read time: 1 min
- Topics: marquis mayo, david winchester jr, annapolis police, baltimore police, fbi, anne arundel county, first degree murder, kidnapping, wiley h. bates middle school, sp a road, news, local
## Conviction details
Marquis Mayo, 37, was convicted of first-degree murder, kidnapping, and use of a firearm in the 2024 killing of David Winchester Jr.

> David Winchester’s family was victimized twice, during the home invasion and senseless murder of their son, who was kidnapped in Baltimore, stuffed in a trunk, and killed in a wooded area near a school
## Body discovery
Winchester’s body was found in Annapolis on March 28, 2024, after his mother reported him missing from Baltimore.
## Crime scene
Winchester was shot outside Wiley H. Bates Middle School in Annapolis and dumped along Spa Road in a wooded area.
## Family trauma
Winchester’s mother was awakened by armed intruders demanding money, with her daughter witnessing a rifle shot through the door.
## Trial timeline
Mayo was convicted in February 2025 but ordered a new trial after claiming evidence-sharing violations; a mistrial followed in March 2026.
## Co-conspirators
Jamar and Monae Fincher, both from Baltimore, pleaded guilty to murder and related charges after the trial.
## Key takeaway

Marquis Mayo received first-degree murder conviction for killing David Winchester after kidnapping him in Baltimore