The coroner's office says there is no evidence at this time that another person was involved. The coroner's office along with the Washington State Patrol Crime Scene Response Team and the Kennewick Police Department are continuing to investigate.
Police say no one else was there to witness the shooting.. So they cannot confirm what happened until crime lab results return.
"Right now there is no suspects. There are no persons of interest in this case. And I want to really drive that piece home. This is a tragedy. Out of respect for the family we're trying to do our very best to be respectful. They're going through a really hard time," said Sgt. Ken Lattin, Kennewick Police Department.
These results raise the question if this shooting was a murder-suicide, but police will not confirm that and say the investigation is still ongoing.
Police say the gun was registered to the father, Drew Austin, but will not say if the gun was locked up.
Kennewick police, Washington State Patrol Crime Lab and the Benton County Coroner continue to work together investigating this case and say it could be weeks until results come back from the crime lab.