PGPD Detectives Make Arrest in March Fatal Stabbing

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Jemall H. Walker​

Detectives with our Homicide unit have arrested and charged 33-year-old Jemall Harris Walker of no fixed address with a homicide that occurred last month within the City of Hyattsville. He is charged with the murder of 32-year-old Dernaldo Mcgee of Hyattsville.

On March 20, 2021, at approximately 5:35 pm, patrol officers responded to the 5400 block of Ager Road for a stabbing. Officers located the victim, Mcgee, outside suffering from multiple stab wounds. He died a short time later at a hospital.

The preliminary investigation revealed, Walker approached Mcgee in an alley way where the two were involved in an argument. Shortly after, Walker began stabbing Mcgee which resulted in his death. Through various investigative techniques, Walker was developed as a suspect and arrested. Walker is being charged with first and second degree murder and other related charges. He is in the custody of the Department of Corrections. A commissioner ordered him held on a no-bond status.


If anyone has information on this case, they are asked to please call detectives at 301-516-2512. Callers wishing to remain anonymous may call Crime Solvers at 1-866-411-TIPS (8477), or go online at www.pgcrimesolvers.com, or use the “P3 Tips” mobile app (search “P3 Tips” in the Apple Store or Google Play to download the app onto your mobile device.) Please refer to case 21-0012645.

Disclaimer: In the U.S.A., all persons accused of a crime by the State are presumed to be innocent until proven guilty in a court of law. See: https://so.md/presumed-innocence. Additionally, all of the information provided above is solely from the perspective of the respective law enforcement agency and does not provide any direct input from the accused or persons otherwise mentioned. You can find additional information about the case by searching the Maryland Judiciary Case Search Database using the accused's name and date of birth. The database is online at https://so.md/mdcasesearch . Persons named who have been found innocent or not guilty of all charges in the respective case, and/or have had the case ordered expunged by the court can have their name, age, and city redacted by following the process defined at https://so.md/expungeme.