Fmr. Army Sergeant and fellow soldier called recently released captured soldier Bowe Bergdahl is at best a deserter and at worst a traitor. (Source: CNN)
(CNN) – After five years in captivity, Army Sergeant Bowe Bergdahl is free.
But some soldiers who served with him say he's a deserter whose "selfish act" ended up costing lives or fellow soldiers, and should be put on trial.
Former Army Sergeant Josh Korder tells CNN he believes Bergdahl was "looking for adventure" when he walked away from his post in Afghanistan in 2009.
"I think he just wanted to go on an adventure without having anybody to answer to, without having anything to worry about," Korder said. "He wanted to go out and see Afghanistan for himself without the army stopping him."
At least six soldiers were reportedly killed searching for him.
"He pretty much walked away voluntarily and in turn the actions that may have killed them," Korder said.
"As soon as we got to Afghanistan and things started to turn a little bit harder for all of us, he immediately started separating himself away from us and everyone else in the platoon and started gravitating more towards the Afghan soldiers," Korder said.
Korder says for Bergdahl to leave was "a very big betrayal."
"He's at best a deserter, and at worst a traitor," Korder said on CNN's The Lead with Jake Tapper on Monday.
Bergdahl was released Saturday in exchange for five detainees at Guantanamo Bay.
U.S. officials are working to determine the circumstances of his disappearance.