(FOXNEWS) — The family of murdered Marine Greg Buckley just wants answers.
Three days before he was scheduled to come home, in 2012, Lance Cpl. Buckley was killed in Afghanistan, in the one place he was supposed to be safe.
He wasn't killed in a firefight on a battlefield, or by a roadside bomb while on patrol. The 21-year-old was working out with fellow Marines at the base gym when an Afghan teenager walked in carrying an AK-47 -- and emptied the clip, killing Buckley and two others.
Advertisement - story continues below
Buckley's family, stonewalled in their search for answers, has since resorted to filing a rare lawsuit against the Marine Corps and Department of Defense. They're not seeking a financial settlement -- they say all they want is information about how their son died in the insider attack.