NEW : A variety of Twitter reaction to charges . Comment: Authorities in Sioux Falls , South Dakota , found that child unresponsive , and later determined he 'd suffered injuries to his head consistent with abuse . Peterson was the NFL MVP in 2012 ; his 2-year-old son died last year .
NEW : A variety of Twitter reaction to charges . Comment: Peterson was the NFL MVP in 2012 ; his 2-year-old son died last year .