The boy’s father called police to the home around 1 a.m. Sunday. The mother, identified as Stacy Ellen Barney, 50, was found dead inside, police said.
Officers took the boy into custody following a search of the area around the home, police said.
“Our hearts go out to the victim’s family during this extremely difficult time,” McKinney Police said in a statement, adding that the investigation is ongoing.
McKinney is about 37 miles north of Dallas.
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