Escape plan

In theory, say I just killed someone and I need an escape plan. I would start off with making a clean kill by making sure all connections that I have with that person are gone so the cops will take a while to come up with the idea as me being that persons killer and remove evidence that I was there. Then as soon as the deed would be done I would book a flight to France, India or someplace like that, somewhere I would want to go to anyway and fly off to there. While in the country I escape to, I would find a way into the black market side of the country and form a new identity and stay with that identity in the country for about five years or so. Upon moving back to the united states I would not be myself. If I lived in a small town before I would then move to a big town, if I liked white I would dress in black and so on. That is what my plan would be to evade the cops and even if my plan does not work I know I would have given the police chasing after me a run for their money. And remember this is all in theory.