A fourth Georgia teenager was taken to jail Wednesday afternoon in connection with a shooting at a house party near Douglasville that left two other teens dead and seven others injured earlier this month, authorities said.

As CrimeOnline previously reported, Douglas County police announced the arrest of three other teens early Wednesday morning in Douglas County. They’ve been identified as Lamar Coleman, 18, and twins, Chase Terrance McDowell and Chance Terrell McDowell, both 17.

Douglas County police said the fourth suspect identified as Kingston Cottman, 17,  was arrested in Cobb County.

Samuel Moon, 15, and Aj’anaye Hill, 14, were fatally shot on March 5 at the Sweet 16 party. Several other teens were wounded. Police said the shooting was gang-related and that Moon and Hill were not the intended targets.

All four suspects have been charged with mass murder, aggravated assault, and aggravated battery, according to Douglas County Sheriff, Tim Pounds.

The sheriff’s office had previously announced a $40,000 reward for information leading to the conviction of those responsible for the shooting.

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[Featured image: Samuel Moon, left, and Aj’anaye Hill/Douglas County Sheriff’s Office]

Additional reporting by KC Wildmoon