Another 17-year-old was arrested Thursday on murder charges in connection with the killing of two brothers in Dunwoody, police said, joining three other teenagers already in custody.

Mathew Licht surrendered at Dunwoody police headquarters about 6:15 p.m. He is charged with two counts of felony murder and armed robbery in the Sunday evening shooting.

Brian Veronica, 17, and Luis Veronica, 19, both of Stone Mountain, were found dead at the LaCota Apartments on Peachtree Industrial Boulevard, Dunwoody police spokesman Sgt. Michael Cheek said. Alexis Hernandez, 17, was arrested not long after the shooting and charged with two counts of murder.

It was the first homicide in Dunwoody this year.

On Wednesday evening, 17-year-old Fernando Osorio and a 16-year-old boy, whose name was not released, were arrested, according to Cheek. Each has been charged with two counts of murder. The teens were found at the Dunwoody Glen apartments, located about a half-mile down Peachtree Industrial Boulevard from the complex where the Veronica brothers were found dead.

Osorio and the 16-year-old were arrested in separate apartment units, Cheek said. According to online jail records, Osorio is also facing charges of armed robbery, possession of a firearm during the commission of a felony and possession of a pistol by a person under the age of 18.

Police have not released any further information about the circumstances of the killings.

Despite the four arrests, the investigation remains active. Anyone with information is asked to contact Detective Robert Barrett at robert.barrett@dunwoodyga.gov or 678-382-6934. Tipsters can remain anonymous by visiting the Dunwoody Police Department’s website at DunwoodyGa.gov/police/crime-info-stats/submit-a-crime-tip.