SEATTLE – The U.S. Army said Wednesday it will seek the death penalty against the soldier accused of killing 16 Afghan villagers in a predawn rampage in March, a decision his lawyer called "totally irresponsible."

The announcement followed a pretrial hearing last month for Staff Sgt. Robert Bales, 39, who faces premeditated murder and other charges in the attack on two villages in southern Afghanistan.

The slayings drew such angry protests that the U.S. temporarily halted combat operations in Afghanistan, and it was three weeks before American investigators could reach the crime scenes.