UPDATE 3/22/18 6:40 p.m.
Chickasaw County Sheriff James Meyers said they did not have enough evidence to indict the suspects.
Meyers said although they have suspects in mind, he is not ready to release their names.
"They know we've talked to them and I think they have information to solve this case," explained Meyers. "I ask them to come forward."
There is more than $5,000 in reward money for anyone coming forward with information.
CHICKASAW COUNTY, Miss. (WTVA) - A Chickasaw County family is demanding justice for their dead horses after a grand jury is unable to return indictments for the four suspected of the crime.
A grand jury convened last Wednesday, hearing the evidence of the shooting that left nine animals dead and two severely wounded.
Last September, a Van Vleet family discovered the animals dead on a neighboring property.
Anyone with any information on the investigation is asked to contact the Chickasaw County Sheriff's Department.