That boat, of course, was the scene of Dzhokhar's eventual apprehension. It was also said to be outside the search perimeter scoured while Boston was on lockdown. That, it turns out, wasn't the case. "It was an area that should have been checked," said commissioner Davis, who confirmed the boat was in fact within the perimeter. "We are not sure how long he was in the boat. There was a pool of blood near where the car was dumped about four or five blocks away from the boat."
Pool of blood near the abandoned car and Bomber only 5 blocks away.
Given the family’s connection to the CIA it is unclear whether he was going to be allowed to get away or he was just going to be killed - until the boat owner thwarted the plan.