This is just awful! You can see a pic taken with a cell phone and you can also listen to the 911 calls. Mom in Mesa abuse case had prior record A mother arrested in the bloody beating of her son inside a Mesa Wal-Mart earlier this week had a history of child abuse charges stemming back to the 2003 death of another son at the hands of a boyfriend. Police arrested Tina Lynn Tatum, 29, at the Wal-Mart Supercenter at Stapley Drive and Baseline Road on Sunday after several shoppers watched her repeatedly hit her 10-year-old son in the face and stomach with a closed fist, according to witnesses. The boy is in the care of a family member. Tatum is on lifetime parole for child abuse because of her role in the death of her 3-month-old son, Anthony Nieves, who was murdered by her ex-boyfriend, Pedro Peralta, four years ago. Peralta is currently serving two consecutive life sentences. Police received 911 calls from several witnesses at the store Sunday detailing the boys brutal beating. The child was described as having a bloody nose and mouth, according to police reports. Witnesses told police that a woman identified as the boys grandmother, Karen Richardson, also hurt the boy by dragging him outside the store by his hair, feet and arms. Wal-Mart employees were asked to intervene, but witnesses said workers cited store policy. Employees are told to contact authorities rather than get involved, Wal-Mart spokeswoman Sharon Weber said Wednesday.