"I thought maybe we'd somehow get some closure, " Dan Arone said of leaving behind the sneakers.

NPR: Boston Marks Week From Marathon Bombs With Silence

Wearing his bright blue marathon jacket, Dan Arone said he had crossed the finish line 40 minutes before the explosions.

NPR: Boston Marks Week From Marathon Bombs With Silence

Near the crime scene, Dan and Keri Arone were pushing their 11-week-old daughter in a stroller when they stopped along Newbury Street, a block from the bombing site.

NPR: Boston Marks Week From Marathon Bombs With Silence