boston bombings
![](https://cdn.abcotvs.com/dip/images/13127908_041423-wabc-original-boston-marathon-bombing-10-year-reflection_Thumbnail.jpg?w=660&r=16%3A9)
Boston Marathon bombings, 10 years later
On April 15, 2013, Chylinski was watching runners finish the 26.2-mile course when two terrorists planted pressure cooker bombs that exploded within seconds of each other, turning the celebratory scene into one of sheer panic and destruction.