<p>BATON ROUGE, La. (AP) -- The former stepfather of the U.S. soldier accused of attacking his own unit in Kuwait was arrested Thursday on a federal weapons charge.</p>
<p>Officials said the arrest was unrelated to the case of Sgt. Asan Akbar, accused of lobbing hand grenades into a brigade command center of the 101st Airborne Division on Sunday. The attack killed two officers and injured 14 other soldiers.</p>