Eric Sims, 29, was automatically sentenced to life in prison for the murder of Montarius Pigrum.

Sims will be sentenced Nov. 17 by Criminal Court Judge James Lammey Jr. for his additional convictions on six counts of attempted first-degree murder and six counts of employment of a firearm in the commission of a dangerous felony.

Victim Pigrum was shot in the jaw and neck around 10:30 p.m. on Aug. 2, 2013, in the 3900 block of Bertram Cove in the Oakhaven area east of the airport.

Investigators said Pigrum and six friends were mistakenly thought to be gang members when Sims and two associates began chasing and shooting at them.

The defendants were members of the Bloods street gang and had been looking to avenge one of their members who had been jumped earlier by a member of the rival Crips gang.

Also facing first-degree murder charges in Pigrum’s death are Jerome Jackson, 24, and Darius Buckner, 20. Their cases are pending.

The trial this week was handled by Ray Lepone, chief prosecutor of the DA’s Multi-Agency Gang Prosecution Unit, and by Asst. Dist. Atty. Neal Oldham, also of the special prosecution unit.

The unit handles homicide cases and other violent crimes associated with gang activity, specific targeted gang members and special cases assigned by the DA.

Prosecutors in the unit work daily with the MGU Operations team, using local ordinances and state and federal laws to hold offenders accountable.