Ohio's attorney general says he'll convene a grand jury to investigate whether other people should be charged in a rape of a teenage girl beyond two Steubenville High School students who were found guilty. 

Activist groups have questioned why people who knew about the rape weren't charged under state law requiring people to report crimes.

Attorney General Mike DeWine said Sunday "this community desperately needs to have this behind them but this community also desperately needs to know justice was done and that no stone was left unturned."