article_snippet.sent: One of strangers, Carlos Arredondo, is now a close friend.
article_snippet.sent: Arredondo, who became known as 'the man in the cowboy hat' was also at the site on Tuesday morning to greet Bauman as His walked on prosthetic limbs. '
article_snippet.sent: Incredible: He was accompanied by Carlos Arredondo, who helped save He life two years ago .
article_snippet.sent: Arredondo, whose adult sons both died in the years before the marathons, helped save Bauman's life after Bauman was hit by the bombs.
highlights_snippet.sent: his also greeted Carlos Arredondo, who helped save his life .
  