FILE - In this Jan. 6, 2014 file photo, acting Boston Police Commissioner William Evans, foreground, attends the inauguration ceremony for Mayor Martin Walsh in Boston. Evans has run the Boston ... more 
FILE - In this Jan. 6, 2014 file photo, acting Boston Police Commissioner William Evans, foreground, attends the inauguration ceremony for Mayor Martin Walsh in Boston. Evans has run the Boston Marathon 18 times, and finished in 2013 before the bombings occurred. This time he will be there as police commissioner, supervising increased security. "It weighs heavy on my mind, that I want this to go off well," he says. "I don’t want anyone hurt. I don’t ever want a repeat of the tragedy we saw that day." (AP Photo/Michael Dwyer, File) less 
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Associated Press | Photo By Michael Dwyer, File
Sat, Apr 12, 2014 8:03 AM EDT