A courtroom sketch shows accused Boston Marathon bomber Dzhokhar Tsarnaev  in court on the second day of his trial Photograph: Jane Flavell Collins/Reuters

The footage is clear. A young man wearing a white cap weaves his way through a crowded footpath along the Boston Marathon route.The crowd in front of (...)

 Roseann Sdoia  walking with the assistance of parallel bars   as she  tries out a new   leg  at a prosthetics clinic two months after the explosions. Photograph:  Yoon S Byun/the Boston Globe via Getty Images

Sabrina Dello Russo says the past year has been tough. She struggles to dial a number on her phone, to concentrate, to multi-task or even to co(...)