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A 28-year-old man suspected of killing his girlfriend s 3-year-old son has been arrested in Tacoma.

The News Tribune reports the man was booked into the Pierce County Jail Wednesday morning on suspicion of homicide by abuse.

The boy s mother reportedly brought him to the hospital late Tuesday night because the child was having trouble breathing. He later died. Doctors noticed signs of abuse and called police.

A 2-year-old girl has reportedly been removed from the home and placed in protective custody.

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