LANCASTER, Texas — Authorities say shootings at a suburban Dallas apartment complex have killed a police officer and two other men, including the son of Dallas' police chief.
Lancaster police say the officer was responding to a reported domestic disturbance around 6 p.m. Sunday when the call was upgraded to shots fired. When the officer arrived, an exchange of gunfire erupted.
Lancaster Police Chief Keith Humphrey said late Sunday that the 37-year-old officer had two children and was a five-year veteran. His name hasn't been released.
Dallas police say David O'Neal Brown Jr., the adult son of Dallas' police chief, also was killed. It's unclear if he was shot before police arrived or during the officer-involved shooting.
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The third victim hasn't been identified.