Nathaniel Simms, the key witness in the trial of five Washington men convicted of the shooting deaths of five District residents in a series of March 2010 shootings is scheduled to be sentenced Oct. 19 for his own role in the fillings.

Simms, 28, faces life in prison after pleading guilty to playing a triggerman role in the March 30, 2010, drive-by shootings of a group who stood along the 4000 block of South Capitol Street Southeast, many after attending a funeral earlier in the day.

Simms is scheduled to be sentenced by Judge Michael L. Rankin.

Simms pleaded guilty to five counts of murder and testified against his five friends, Sanquan Carter, Orlando Carter, Jeffrey Best, Robert Bost and Lamar Williams during their April trial.

The five men were convicted on multiple murder and conspiracy charges in the three shootings that left five people dead and eight injured. They are scheduled to be sentenced on Sept. 11.

Read more: The Post’s crime coverage