The soldier, James Barker, one of four American soldiers accused of raping the Iraqi girl and killing her family in the March 2006 incident, pleaded guilty on Wednesday to rape and murder in Fort Campbell, Kentucky.
In March of 2006, James Barker was accused or raping the Iraqi girl and killing her family. 
It is neither correct or incorrect because it does not say when he was accused. It only says when the incident happened. He could have been accused in March 2006, or he could have been accused at a later date. 
( z1 accuse :ARG1 ( z2 person :name ( z3 name :op "James" :op "Barker" ) ) :ARG2 ( z4 and :op ( z5 or :op ( z6 rape :ARG0 z2 :ARG1 ( z7 girl :mod ( z8 country :name ( z9 name :op "Iraq" ) ) ) ) :op ( z10 rape :ARG0 z2 :ARG1 z7 ) ) :op ( z11 kill :ARG0 z2 :ARG1 ( z12 family :ARG1-of ( z13 have-org-role :ARG0 z7 :ARG2 ( z14 member ) ) ) ) ) :time ( z15 date-entity :month 3 :year 2006 ) )