Published: Mar 16, 2012 12:08 PM EDT

SEATTLE (AP) - A lawyer for the U.S. soldier accused of slaughtering 16 Afghan villagers last weekend says his client saw his friend's leg blown off the day before the rampage.
 
Seattle attorney John Henry Browne tells The Associated Press that according to his client's family, he was standing next to another U.S. soldier when that soldier was gravely injured.
 
Browne says all of the soldiers at the remote camp where his client was assigned were upset by the injury. It's not clear whether that might have prompted the killings of the civilians, who included women and children.