breaking news
Adrian Peterson is under investigation for a SECOND child abuse case involving one of his other children ... according to a report.
This new investigation involves an incident that allegedly went down last June. According to KHOU ... Peterson was investigated when the 4-year-old boy went home to his mother with a scar on his forehead.
The station says Adrian sent the mother a text message saying the child hit his head on a carseat -- but when the mother questioned him further ... Peterson eventually admitted hitting the child.
Earlier today ... Peterson issued a public apology for the other case -- for which he's been indicted -- saying he was sorry for hurting the child and visiting a psychologist has taught him there are other ways to discipline kids.
Story developing ...
