Donald G. Murriell, who was shot in the abdomen Oct. 19 in an incident that touched off a nightlong police siege at a Southeast Washington rooming house, died last night at D.C. General Hospital.

Murriell, 42, a resident of the rooming house at 2106 Minnesota Ave. SE, was shot in front of that address shortly before 7:45 p.m. by another roomer, Reginald Coleman, who later stabbed another man.

Coleman then retreated into the house where he kept scores of police and firefighters at bay with sniper fire for six hours before he died in a fire he set in his second-floor room.

The standoff ended about 3:30 a.m. Oct. 20 when police flooded the house with tear gas and stormed inside, firing automatic weapons. Coleman was found dead in his room, and the medical examiner ruled later that he died of smoke inhalation caused by the fire.

According to police and witness accounts, Murriell was shot about 20 minutes after an earlier dispute with Coleman in the doorway of the house.

The stabbing victim, Lawrence Coleman, a neighbor on the block and not related to Reginald Coleman, then went to the house and urged Reginald Coleman to let him assist Murriell, who was lying in the doorway.

During an argument, Lawrence Coleman was stabbed in the chest, but made his way to the sidewalk. He was admitted to Greater Southeast Community Hospital for treatment and later released.