One of the guests at the interfaith service in Boston is Bradley Cooper. The same service Obama spoke at. Bradley also visited patients in the hospital. In the picture he's with Jeff Bauman who lost both legs (man in wheelchair having his artery pinched). Jeff Bauman helped identify suspect 1 as soon as he came to from surgery.
source + julian edelman's twitter.
Not sure if this is post worthy, but I thought it was really sweet.