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'My dear son Martin has died in the attack on Boston'

The father of Martin Richard, the eight year-old boy killed in the Boston Marathon bombs, has thanked people "for their thoughts and prayers":

My dear son Martin has died from injuries sustained in the attack on Boston.

My wife and daughter are both recovering from serious injuries.

We thank our family and friends, those we know and those we have never met, for their thoughts and prayers.

I ask that you continue to pray for my family as we remember Martin.

We also ask for your patience and for privacy as we work to simultaneously grieve and recover. Thank you.

– Victim's father Bill Richard