Authorities said 22-year-old Kyle Blackburn, a former client of Soles' legal practice, told them he was leaving the property when Soles shot him.
At the end of the day, the grand jury requested a bill indictment against Soles for assault with a deadly weapon inflicting serious injury.
Cooper's office plans to present an indictment to the jury for consideration in January.
Assault with a deadly weapon inflicting serious injury is a Class E Felony in North Carolina and punishable by 15 to 31 months in prison.
If convicted, Senator Soles could lose his right to vote and lose his ability to serve in the state legislature.
Other matters involving Soles remain under investigation by the SBI and the attorney general's office.