"He can't very well tell us anything if he's dead, can he? I don't see any robobrain chassis around here, and those tend to blank the brain anyway." Alice glared up at her friends and waved her arms, one hand full of bladed multi-tool, the other with strips of robe, at the mist, water, and destruction. "Nevermind that he already knows about the Vault, so killing him won't keep our families safe from his friends. Besides, it's not like We know how to get off this damn island!"
(Do we have maps of the area? Obviously they would be a bit out of date but knowing which way to Manhattan, New Jersey, and Staten Island would be pertinent information, and useful if it's in our Pip Boys.)