"Maybe it was her blood in my veins that let me feel her. The beating of her very living heart. Or maybe, we've always been connected." Mick & Beth - Moonlight
I never plot out a thing in my FanFic....except rough ideas in my head! I just sit down & start writing.....and the story takes shape as it goes along.
That's often the case for me, as well. I don't often plot out things either, though I may have some general overall ideas; but for this kind of story, following an investigation, it would have been handy. I keep forgetting to include Josh, for one thing.