Not too many links tonight for obvious reasons but there were a few sites worth sharing:
Timeline map of the Boston Marathon bombing and investigation This isn't the same as what Rachel showed on the air but still a pretty good reference.
Suspects' uncle makes emotional appeal
The entire city of Boston has shut down. How much will this cost?
Few Chechen immigrants make it to U.S.
And in case you need practice pronouncing Kabardino-Balkaria, here is that map of the Caucasus countries: