The bombers packed six-liter cookers with nails and ball bearings, using the tightly sealed pots to amplify the destructive pressure of the blast.

Two Emerson College students coined the phrase just hours after the attack to print on charity t-shirts, raising over a million dollars for victims.

A Watertown resident stepped outside after the lockdown was lifted and noticed a loose tarp and a trail of blood leading into his parked boat.

Users wrongly identified Sunil Tripathi, a missing Brown University student who had actually died by suicide before the bombings even occurred.