Sign up for the MSNBC newsletter

You have been successfully added to our newsletter.

Let our news meet your inbox

msnbc

Where the Boston bombing investigation goes from here

copied!

Retired ATF Special Agent and former hostage negotiator James Cavanaugh joins MSNBC’s Craig Melvin to talk about the kind of bombs that went off at the Boston Marathon and how the investigation could proceed.Apr.20.2013

BEST OF MSNBC

Play All