California man was standing near a mailbox at the Boston Marathon finish line . While cheering for his wife , second bomb explodes , sending debris flying . The mailbox , one of the only objects left intact after the second explosion and the site where authorities have focused their investigation , may have saved Folkert 's life . He dies instantly from injuries sustained in the blast.
California man was standing near a mailbox at the Boston Marathon finish line . While cheering for his wife , second bomb explodes , sending debris flying . He dies instantly from injuries sustained in the blast.