The Oneida County District Attorney's Office say a grand jury has returned a 13-count indictment against eight individuals in the beating death of Lucas Leonard and the assault of Christopher Leonard at the Word of Life Church in Chadwicks.

Church Pastor Tiffanie Irwin, Joseph Irwin, David Morey, Bruce Leonard, Deborah Leonard, Sarah Ferguson, Linda Morey, Traci Irwin and Daniel Irwin are facing charges including second-degree murder, manslaughter, kidnapping and gang assault.

David and Linda Morey, the Leonards, Ferguson and Joseph Irwin were originally charged in the incident.

The charges against Tiffanie Irwin, Daniel Irwin and Traci Irwin are the result of the grand jury action.

The District Attorney's Office says the prosecution of the boys' mother, Deborah Leonard, will be handled separately.  She'll be in court on December 2nd.

Lucas and Christopher Leonard were beaten during a counseling session at the church on October 11th.

VIDEO: FORMER WORD OF LIFE CHURCH MEMBER RECALLS HIS EXPERIENCE