Jurors in the Boston Marathon bombing trial Wednesday saw new surveillance video from inside Marathon Sports on Boylston Street.

The footage shows the first bomb exploding on the sidewalk just a few feet away.

The store’s manager, Shane O’Hara, was emotional as he testified.

“It was like a scene from Private Ryan or Platoon. Something I never thought I’d see in my life. All you heard were cries, sirens, screams, and that,” O’Hara said.

He could be seen on the store video using running shorts to tie off a tourniquet on someone’s leg.

“Things that haunt me is making decisions who needed help first, who was more injured than the other. I felt that was never my role,” he said.

Jurors also saw video a tourist shot on the sidewalk moments after the blast. The tourist’s sister-in-law was badly injured.

“My bones were literally laying next to me on the sidewalk. I thought that was the day I would die,” said Rebekah Gregory.

Gregory said she remembered looking for her 5-year-old son Noah and seeing Krystle Campbell.

Gregory wiped back a tear as she remembered realizing Campbell was dead.

The judge in the case was considering what video evidence from the trial would be released to the public and when.

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