More information: Katrina Powe was fed up with her older son, an aggressive 12-year-old who was getting into fistfights and had started a neighborhood gang. Several times, she told her younger son, a 9-year-old, that she was going to send her older child away as she had done before, according to police.
There were also signs that Powe would physically abuse the 12-year-old but not the 9-year-old, according to two Prince George's County police sources who spoke on condition of anonymity because the situation involves on ongoing investigation.
"She would pit one child against the other," one of the sources said. "She played favorites."
On Sunday morning, the 12-year-old stabbed and bludgeoned to death his mother and brother in the family's Forestville apartment, police said. His rage was sparked by an argument with his mother after he and his brother were ejected from a friend's birthday party, the sources said.
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