Speaking of sorry copies of lawmen, the ATF has claimed another victim

of their Gunwalker plan:
Now another murder connected to Operation Fast and Furious has surfaced. According to a congressional report released, Mario González Rodríguez, brother of the state attorney general of Chihuahua at the time, was also murdered by guns traced back to Operation Fast and Furious. The U.S. withheld this information from Mexican authorities for eight months.
I wonder if the guilty parties assured the Mexican Government that "...it was all the fault of the prosecutors, so dont' blame us!" ?