shooter or his victim. both were based at the reservist posts near the town of forest park. so far investigators are not giving any information on a motive or any known relationship between the two guys. the shooting came within days of two other incidents involving weapons at military bases in the southeast. in one case, at fort gordon in georgia, military officials say they arrested a former national guards man who was on base with a land mine and night vision goggles. democrats in south carolina say it s the right decision. even though it will hurt them. they are keeping the mystery primary winner alvin green as their official candidate. expecting to participate in debates and interviews and deliver big-time speeches. up next, a look at his chances against the republican and what he says he wants to do with president obama once he gets to washington.