District Man Sentenced to 25 Years in Prison for Fatally Stabbing Woman in Northeast Washington

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FILE PHOTO: Signage is seen at the United States Department of Justice headquarters in Washington, D.C.

            WASHINGTON –Robert Dean, 64, of Washington, D.C., was sentenced today to 25 years in prison for fatally stabbing a woman with a screwdriver in Northeast Washington, announced U.S. Attorney Matthew M. Graves and Robert J. Contee III, Chief of the Metropolitan Police Department (MPD).

            Dean was found guilty by a jury in November 2021 of second-degree murder while armed. The verdict followed a trial in the Superior Court of the District of Columbia. He was sentenced by the Honorable Marisa J. Demeo.

            According to the government’s evidence, on March 31, 2018, shortly before 5:04 p.m., Dean stabbed his former girlfriend, Tamiya White, 38, at her parking lot in the 1000 block of Mount Oliver Road NE before she drove herself to the local McDonalds to seek help. Ms. White’s two children were in the apartment at the time.

            Dean was arrested on April 5, 2018. He has been in custody ever since.

            In announcing the sentence, U.S. Attorney Graves and Chief Contee commended the work of those who investigated the case from the Metropolitan Police Department. They expressed appreciation for the assistance provided by Bode Forensics and the FBI’s Cellular Analysis Survey Team (CAST).  They also acknowledged the efforts of those who handled the case at the U.S. Attorney’s Office, including Assistant U.S. Attorneys Sharon Donovan, Emma McArthur and Eric Hansford; Chrisellen Kolb, Chief of the Appellate Division; Paralegal Specialists Grazy Rivera and Stephanie Siegerist; Investigative Analyst Zachary McMenamin; former Victim/Witness Advocate Marcia Rinker; Litigation Technology Specialist Taylor Davis; Forensic Child Interviewers Tracy Owusu and Karen Giannakoulias; Intern Lauren Rogers, and teams from the Victim/Witness Assistance Unit and the Litigation Technology Unit.

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            Finally, they commended the work of Assistant U.S. Attorneys Monica Trigoso and George A. Pace, who investigated and prosecuted the case.