Attorney: Ga. Soldier Charged in Killings Has PTSD The defense attorney for an Army sergeant charged in a double slaying outside Fort Stewart says the soldier suffers from brain injuries and post-traumatic stress after serving in combat in Afghanistan. The attorney for Sgt. Anthony Peden told a Superior Court judge Friday the soldier's undergone psychological evaluations in preparation for his defense. Peden and a fellow soldier, Pvt. Christopher Salmon, face possible death sentences if they're convicted of the Dec. 4, 2011, killings of Michael Roark and Tiffany York. Prosecutors say the soldiers belonged to an anti-government militia group and killed the couple to protect its plans. The soldier accused of leading the group, Pvt. Isaac Aguigui (ah-GEE-gee), pleaded guilty to murder charges July 19 and named Peden and Salmon as the shooters.