Evan King was born in 2222. He has lived on this island all of his 55 years. He's watched the settlement shrink from 30 people down to its current population of merely 5. He is still responsible for the small settlement and is very careful whenever a stranger enters his domain. He is quite experienced in combat, having repelled attacks by raiders, slavers, and various creatures. To maintain Arefu's security, he had the northern bridge span destroyed and feels safer having to monitor only the southern approach.
Blood Ties: When you arrive in Arefu to deliver Lucy West's letter, he will attack you by detonating a mine near you. However, it does not hurt you and he calls you to him. After conversing, he will ask you to check onto the residents' welfare. Upon returning to him with news of the West's violent deaths, he will send you to search for Ian West, who was taken away by The Family. Upon returning Ian to Arefu and making a deal with the Family to protect the town, Evan will allow you to make use of the weapons he has stored.
If you have destroyed Megaton before completing the quest Blood Ties, King will give the quest to you instead of Lucy West, although the speech options with Ian are identical to as if Lucy was still alive.
Upon completion of the Blood Ties quest, there will be an extra dialogue option while talking to Evan King. If you choose this option, he will give you one of the many alcoholic drinks for free. You will be able to use this option to gain the drinks as many times as you would like.
Inside his house (which requires level 50 lockpick to break in), you can find the Repair Bobblehead item. The door is marked red but no Karma is lost. It is trespassing while inside though, and if you linger too long the whole town will become hostile to you (as well as the Family depending on whether or not (and if so, the way) you concluded Blood Ties).
King also does not have a key to his own house, so you cannot find it by picking his pockets or killing him, unless he is in his house. This will happen if Alan is guarding Arefu.
xbox360 It is possible for King to walk into one of the holes in the bridge, thus turning all the residents of Arefu hostile to you. This may also happen with the other residents of Arefu, but King tends to do it the most. [verified]
ps3xbox360 When you return to Arefu, sometimes there will be a creature attacking King. If the creature kills him, you will fail the quest and all the residents of Arefu turn hostile to you. [verified]