Pine Ridge boy whose half-brother was killed also slain

A woman from South Dakota's Pine Ridge Indian Reservation is accused of killing her 2-year-old son, a boy whose father is awaiting trial in last year's death of the child's half brother.

The son of Katrina Shangreaux, 28, had bruises, bite marks and other injuries, and investigators believe a potty-training issue triggered the killing on July 28, FBI Special Agent Mark Lucas said in an affidavit filed July 29 in U.S. District Court.

The boy was in his mother's custody and living at his grandmother's home in Porcupine. The grandmother "reported to agents that Katrina was 'arguing with' (the boy) regarding a potty-training issue," Lucas wrote, adding that her statement and the boy's injuries "are strong indicators of child physical abuse triggered by potty training."

http://www.mitchellrepublic.com/news/state/4090900-pine-ridge-boy-whose-half-brother-was-killed-also-slain