Virtually overnight, a peace activist with a colorful past has turned into a living reminder of both the horror and bravery witnessed in the double bombing at the Boston Marathon.
Fifty-two-year-old Carlos Arredondo was watching from the finish line when the bombs went off Monday. He was caught in a dramatic Associated Press photo pushing a wheelchair with a victim who lost most of his lower legs.
Visitors to his home Wednesday included reporters and two FBI agents. Arredondo says the agents asked routine questions they hoped would help them solve the crime.
Arredondo's enlisted son was killed in 2004 by a sniper in Iraq. The grief-stricken father smashed the windows of the family van, climbed inside and set it on fire. He says the fire was an accident.
In 2011, his younger son committed suicide.