PHILADELPHIA (WPVI) -- Another suspect has been identified in the mass shooting last month in the Grays Ferry section of Philadelphia that left three people dead.

Christopher Battle, 24, has an active arrest warrant for the homicides, police said Friday.

One suspect is already in custody for the shooting . Terrell Frazier, 22, was taken into custody on Wednesday.

But police said this week they are still looking for at least a dozen more shooters after finding 13 separate guns and 140 pieces of ballistic evidence at the scene.

The shooting happened just before 1 a.m. on July 7 in the 1500 block of South Etting Street. Shocking video from the shooting shows multiple people pulling out guns and opening fire.

Police said 13 separate guns were fired in this incident. In the end, three p

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