A Philadelphia woman pleaded guilty to manslaughter Thursday in the death of her 11-year-old daughter, who was shot by her two-year-old brother.

Tiffany Goldwire, 31, of West Philadelphia, had told her older son, a 14-year-old, to put the loaded .357 revolver in a safe place, according to police.

Her two-year-old found the handgun under a bed and fatally wounded his sister, Jamara Stevens, in the bedroom as she was texting her friend.

Goldwire's attorney, Eugene Tinari, said that because the gun had been cocked, it required little force to pull the trigger.

Tinari said the "indescribable tragedy" was unique, and at sentencing in Common Pleas Court he will ask for leniency to "allow this family to put, as much as they possibly can, this tragedy behind them."

Goldwire remains behind bars. Her four surviving children are staying with various members.