DALLAS (CBSDFW.COM) – Three people are dead and one victim is in serious condition after an intruder broke into a Dallas home on the 5100 block of Wynell Street.

Police were dispatched to the home around 6:40 a.m. Saturday morning after receiving calls about gun shots.

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Police found 38-year-old male Demarcus Black and two females, 36-year-old Kimberly Montgomery and 21-year-old Tyteanna Lyahanee Brown, dead from gunshot wounds.

One other unidentified victim was shot as the shooter was fleeing.

That victim was transported to Baylor Hospital. Police do not have positive identification of the shooter.

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Police believe the shooting was a drug related incident.

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