Rest in peace and may angels greet your coming.WASHINGTON - One U.S. Army soldier was killed and another was injured Tuesday when attackers fired rocket-propelled grenades at American troops in Baghdad, Central Command said.The soldiers were attacked at a collection point for illegal weapons in the southwestern part of the Iraqi capital, Central Command said in a statement. Names of the soldiers, who were from the 2nd Brigade Combat Team of the Army's 82nd Airborne Division, were withheld Tuesday until their relatives could be notified.