This deals with the railroad quest line so if your not to it don't read cuz it might spoil a bit.

So during one of the quest for The Railroad I was supposed to go meet someone at the town of Bunker Hill and while talking to him I was attacked by a named NPC called Edward Eagan (not positive on the spelling). I killed him but he was only "downed" as some named NPCs do, my question is 1. does anyone know why he was hostile to me immediately? 2. I tried to go back a save file and see if it was something I did but he was still hostile, so I left the town and continued my quests, is there going to be a point where I need to talk with him and I won't be able to?

Sorry for the wall of text guys hope someone can help! Thanks.