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ATLANTA -- A Decatur man will spend the rest of his life in prison after being convicted of killing two people in 2010.

Derrick Burden, 24, was sentenced Friday to two life sentences without the possibility of parole.

He was found guilty of shooting 21-year-old Samuel Blizzard, Jr. and 26-year-old Calvin Streater to death inside a southeast Atlanta townhouse on Sept. 5, 2010.

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Police said the townhouse belonged to Blizzard's cousin. Blizzard's body was found slumped over the living room sofa; police said Burden forced the victim to kneel before shooting him in the back of the head. He also stole Blizzard's laptop.

Streater lived in North Carolina and was visiting Atlanta to celebrate Black Gay Pride weekend. He was shot to death in a rear bedroom. Police said Burden met Streater at a convenience store and followed him back to the townhouse to hang out for a few hours. Later that day, he returned to rob and kill the victims.

After the shootings, Burden ran to a nearby neighborhood, where police recovered a bag containing the murder weapon and Blizzard's laptop. They used DNA from a cigarette butt found at the crime scene to link Burden to the murders.

Burden was charged with murder, felony murder, aggravated assault, armed robbery and weapons charges in the two deaths.