CNN CNN Newsroom May 3, 2013 13:12:00
Provide more clues. and as the vastgation continues, so too does the recovery for victims. like mark, who lost a leg in the bombing. the other leg shattered, his arms riddled with shrapnel. >> i was scared, because it was dark. i thought i was dead, it was over. >> reporter: he draws strength every day from a photo of his 5-year-old son. >> every time they stick me with another needle, cut me, put something, do something, ripping, changing bandages, i look at that picture. that's what got me through it. >> reporter: and also, carol, an update on tamerlan tsavraev, where he will be buried. many...