WAGONER COUNTY, Oklahoma - Two men are free after sitting in jail for four days on murder and arson complaints in Wagoner County. 

Now, the sheriff's office is moving forward with its investigation into two deaths and a fire.

While the sheriff's office is waiting on the state Medical Examiner's Office to identify the man and woman killed, the two men released today say they're related to one of the victims. 

John Lampson and Carlos Valdez are free men after both were arrested on complaints of first-degree murder and first-degree arson. 

Lampson says one of the victims is his twin brother, Ernie. 

"Maybe now they'll find who actually did it," Lampson said.

"I'm just hoping they don't try to put us back in if they can't find whoever actually did it," Valdez said.

The Wagoner County Sheriff's Office has all of its investigators working to figure out how and why two people were found dead inside this charred mobile home in the Lakecrest area.

"This is a tough case. Yeah it's a very tough case," said Deputy Nick Mahoney.

Mahoney says after investigators sat down with the District Attorney Monday, Lampson and Valdez were released. 

"I don't know what the conditions are. I don't know the reasons of why they were released," Mahoney said.

Valdez says the man who died is his stepfather. 

"I do wanna know who killed him," Valdez said.

"We couldn't have done it because I was moving a stove and they were just getting out of bed at the same time his little sister came and tell us that my brother was burning," Lampson said.

The District Attorney's office will only say that after the arrests, it learned more information that led to the charges being declined.