Marcellus E. Jackson, 23, and Kier M. Johnson, 21, were arrested Monday in connection with the 2010 slaying of Jamal Coates, D.C. police announced.

Investigators count Coates’s killing as among crimes by rival gang members in the U Street NW neighborhood.

Coates was shot to death on Sept. 28, 2010, after he attended a funeral for a young woman who was killed earlier that month and whose boyfriend was charged in her death, police said.

Among the funeral attendees were members of several Northwest Washington gangs, authorities said.

Shortly after 12 p.m., as Coates and another man who had been at the funeral were getting into a car near the church in the 1900 block of 13th Street NW, they were approached by another car and shots were fired, according to police.

Coates and the man fled the scene in the car and turned onto the 1100 block of U Street NW. The car went out of control and collided with two other vehicles before flipping over.

According to police, both Coates and the other man had been shot. The other victim was taken to an area hospital for treatment and survived, but Coates was pronounced dead on the scene.

On Sept. 29, 2010, Brandon Miller, 21, of the1200 block of Girard Street NW was arrested and charged with first-degree murder in Coates’s death.

Last month, a D.C. grand jury indicted seven members of a criminal street gang at 14th and Girard Streets NW — known alternatively as G-Rod, 1-4 and the Cut Crew — who authorities said were responsible for several murders and shootings since 2006, including Coates’s death.

Authorities said Coates had been a member of a rival gang.

The seven men, all from the District, were indicted on various counts including first-degree murder.

On Monday, Jackson and Johnson were also charged with first-degree murder.

Previous coverage:

Photos: Shooting at 11th and U streets in Northwest

Video: Funeral concludes with fatal shooting

One dead, one injured in U Street shooting

Alleged gang members indicted in killings, other crimes