The Washington Post has a very good interactive map of last week’s dramatic events in Boston — all the whos, wheres and whens etc.
The subject of Friday’s day-long manhunt, i.e. the second suspect, didn’t travel very far from the scene of the original Watertown shootout to his final hiding place in a backyard boat. We’re talking about four or five blocks by the look of it.
In the “Manhunt” section of the graphics, keep hitting “next” to move the timeline forward. Number “3” is the scene of the shootout and “5” is where they captured him Friday night. Notice how he was outside the cordoned off area when he was finally found, though there must have still been a gazillion police cars zipping around that kept him hemmed in. He was also apparently wounded at the time.