FORT WORTH It's been seven months since two explosions rocked the finish line of the Boston Marathon.

Thirteen people were killed and hundreds more were injured, and the act of terrorism by two brothers robbed many participants of their sense of security.

Many runners who were close to the finish line that day had to stop when it became a crime scene.

Two North Texas women who were among the runners that day Toni Biggerstaff of Keller and Jennifer McAlister of Fort Worth served as grand marshals of the Wild Asphalt Run at the Texas Motor Speedway on Saturday.

McAlister was very close to the location of the first explosion in Boston.

'All of a sudden, I heard a loud explosion and saw the building next to me blow,' she said. 'I kept running because I didn't know what it was. Then I heard a second bomb, and that's when I realized it was something bad.'

Both women said they plan to return to Boston at some point and run across that finish line.

Money raised by the Wild Asphalt Run will go to children's charities.

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