The Lakota tribe said there are still no arrests and no suspects in the case of the slaughtered sacred white calf known as Lightning Medicine Cloud.
The rare calf was found skinned at the Lakota Ranch in Hunt County in late April, just days from its first birthday.
The tribe made the announcement in a news conference Tuesday morning, along with their hope that when the grand jury meets on Friday they will take up the case.
On Tuesday, the tribe said it believed at least 7 people were involved in the slaughtering; people from other tribes and non-Natives.
They said at this point evidence such as phone records and emails have been gathered.
Arby Little Soldier, the spokesperson for the Lakota tribe, said there will be justice in this case.