in 2010 agent jesus mesa shot sergio adrian hernandez guarico under this bridge on the edge of juarez mexico. the us mexico border runs through the middle of the canal. >> sergio and some of his friends who live on the mexican side of the border often were in that dry ravine, and they were there on that summer evening as well. >> a witness filmed what took place with a cell phone. bobbie mcdow was on the bridge that day too, and later provided this sworn statement to attorney bob hilliard. >> a border patrol agent grabbed a hold of the one basically came into his arms. and he had his weapon in his right arm, and the young man in his left hand. i was very very worried i didn't feel there was any reason for him to have pulled his gun. >> he started firing his weapon, into mexico. [gun shots] >> the border patrol guy aims, and you hear two shots..and one hits sergio right between the eyes. >> after the shooting stopped, i'm looking around and i see that there's someone on the ground underneath the black bridge. and i remember saying to my husband, "is that a body?" and he says, "yes". >>