Officials did not provide a motive for the shootings or say what led them to arrest McNeal.

RELATED: 'This has broken us totally apart': 2 cousins found shot dead in DeKalb home

The victims were lying on the floor in the home when police arrived about 1 a.m. on Dec. 10, according to an incident report obtained by AJC.com. They each had gunshot wounds to the head, police said.

“This has broken us totally apart,” Rebecca Mahoney, Collier’s sister, told Channel 2 Action News in December. “They senselessly just took his life.”

The family was told by police that the men were killed execution-style, Mahoney told the news station.

Channel 2's Tyisha Fernandes learned the two victims were close cousins who were always around each other.

According to the police report, one of the men was found lying by the front door while the other was near a sliding glass door. The front door appeared to have been forced open, police said.

A neighbor told police he noticed the door was open when he got home. He saw two people show up in a red SUV; one person went into the house and “quickly came out” before driving away, according to the report.

He then saw “a foot hanging in the doorway” and called police.

Another neighbor said she heard gunshots.

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