A D.C. Superior Court jury on Friday convicted a District man of first-degree murder and other offenses in the 2010 fatal shooting of one person and the wounding of two others near a Southeast Washington playground.

The jury found Donnell Washington, 28, guilty in connection with the July 9, 2010 fatal shooting of Stanley Dawson, 19, as well as the non-fatal shootings of two of Dawson’s friends as they gathered near a playground in the Parkland neighborhood in the 3500 block of 19th Street SE.

Prosecutors Kate Rakoczy and Glenn Kirschner argued that Washington snuck up behind Dawson and fired two shots into his head and back. One of Dawson’s friends was struck in the forearm and backside. Another friend was grazed to his nose and foot.

Prosecutors said Washington was angry after an argument five days earlier in which Dawson snatched a gun away from Washington.

Washington is scheduled to be sentenced on Nov. 19 by Judge Russell F. Canan.