Staff Sgt. David Wentzel, in testimony recorded in October, said Martinez "seemed unconcerned" moments after the fatal blast.
Wentzel said he assumed Martinez was shell-shocked because he didn't respond when he yelled for Martinez to take cover. Wentzel said he jumped up and pulled Martinez to the shelter of a building.
"I was expecting there was more to come," Wentzel testified. "He was standing in the middle of the road not trying to seek cover or anything. It was almost like he knew it was over."
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