Man guilty of killing mom, stepbrother

A man was found guilty of two counts of second-degree murder Thursday in the killing of his mother and stepbrother in Prince George's County.

Prosecutors said Quindell Mercer, 35, shot Patricia Harris and her son, Frank Lamar Harris, in August 2011, and left their bodies on a couch so that it appeared they were sleeping, according to prosecutors.

Frank Arthur Harris discovered his wife and son dead in the home the next day.

Investigators were able to identify a handgun used to kill Mercer's mother and half-brother -- a Desert Eagle .45-caliber handgun -- as one of four guns Mercer threw out of a window when he was arrested in August, according to authorities.

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Mercer is scheduled to be sentenced Jan. 11 and faces 110 years in prison.

Halloween shooting victim ID'd

D.C. police are investigating a fatal shooting in Northeast Washington.

About 9:45 p.m. Wednesday, a man was observed running on the 2000 block of Fourth Street NE, and collapsing in the street.

The man lost consciousness and was treated by D.C. firefighters, but died, police said.

The man was identified as 25-year-old Anthony Weathers, of Suitland.

Police said the victim had been in the rear alley of the 300 block of V Street NE, when he was shot multiple times.

Anyone with information about the shooting can call police at 202-727-9099. Anonymous information may be submitted to the police text tip line by text messaging 50411.

-- Ben Giles and Scott McCabe