BOISE -- Four Boston Marathon runners from the Treasure Valley share their first-hand experiences of the explosions that killed three people and injured over 100 on Monday.

Zach Dwello and Mark Pridgen of Nampa, Cindy Fazzio of Kuna, and Heidi Peters of Eagle say the day started beautifully.

They say the weather was nice and the city and volunteers were welcoming and supportive, but then they heard an explosion, followed by another one.

Here are the eyewitness accounts of four Idahoans who witnessed the tragedy in Boston.

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