Man convicted of killing mother, half brother sentenced to 110 years in prison

January 11, 2013

The man convicted of fatally shooting his mother and half brother inside their Fort Washington home in 2011 was sentenced to 110 years in prison Friday, prosecutors said.

The lengthy sentence was the maximum that Quindell Mercer, 35, could have received in connection with the August 2011 slayings of 20-year-old Frank Lamar Harris and 56-year-old Patricia Harris, Prince George’s County prosecutors said. He had been convicted in November of two counts of second-degree murder and related gun charges, prosecutors said.

Though they did not specify a motive, prosecutors had accused Mercer of fatally shooting Patricia Harris, his mother, and Frank, his half brother, then leaving them dead on a couch where Harris's husband eventually found them. Prosecutors said DNA evidence linking Mercer to the weapon was pivotal in the case.

Matt Zapotosky covers the federal district courthouse in Alexandria, where he tries to break news from a windowless office in which he is not allowed to bring his cell phone.
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