Investigators are probing if PTSD was a possible factor that fueled alleged DC shooter Rahmanullah Lakanwal’s rampage, sources said Friday, given his time working in a CIA-backed Afghan unit that’s been accused of brutality.

Lakanwal, 29, served eight years in the Kandahar Strike Force known as one of the “Zero Units” during US operations in Afghanistan, and was “responsible and professional,” an ex-Afghan commanding officer told CBS News.

But he has grappled with mental health issues since landing in American in 2021 as part of “Operation Allies Welcome,” a Biden administration program that helped Afghans who fought against the Taliban flee the war-torn nation .

“He was known for being responsible and professional within his team and had strong anti-Taliban views,” said Lt. Gen. Sa

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