A third arrest was made by the Wagoner County Sheriff's Office Tuesday morning regarding the 2006 death of Jarret Clark.
District attorney Brian Kuester has filed formal first degree murder charges against Anthony Wallen, of Haskell, in the death of 18-year-old Jarret Clark after hundreds of hours of investigation by Wagoner Co. sheriff Bob Colbert and investigators.
"The Sheriff's investigation has been ongoing for quite some time and has led to the arrest and filing of an information against Mr. Wallen. This is another step in the process of achieving justice for Jarret Clark, however the investigation continues and I encourage anyone with information concerning this case to do the right thing and come forward," said district attorney Brian Kuester.
Deputies with the Wagoner County Sheriff's Office arrested Courtney Manzer in February for her allege role in the 2006 death of Jarret Clark. Prosecutors charged her with first degree murder a short time after her arrest.
Manzer has previously pleaded not guilty to the murder charge, according to previous reports from KTUL.
In May, prosecutors announced this week the arrest of Dayna Miller for murder and conspiracy to commit first degree murder.
The arrest affidavit states Miller told an eyewitness "as long as they don't find a body we are okay" in reference to Jarret Clark's disappearance at Fort Gibson Lake after a graduation celebration.
The charges against Brandon Hargrove (deceased), Manzer and Wallen allege that they acted as principals and accomplices in the teen's death, by beating him and placing him in a lake to die.
The Oklahoma State Medical Examiner's Office initially ruled the 18-year-old drowned.
Clark disappeared while at a graduation party at the lake. His family has long suspected that Clark got into a fight, was knocked unconscious and thrown into the lake.
"I'm actually a little embarrassed what this family, grandparents included, has had to go through for the past 8 years. No family should have to go through what they've went through," Sheriff Bob Colbert said.
Jarret's father, Eric Slater, says the family wants to see justice for Jarret.
"I really commend the sheriff's office and the district attorney's office for bringing integrity back to this courthouse. What they've gone thorough they took it personal," says Slater.