If you shoot one of our friends or family, I suspect that most of us here would have the motivation to chase you forever. I would want to capture you alive so you could dance the 'skinned tango'.
If they are in range, so are you.shoot a few more, and if they continue, leave the area. Come back when you feel like it, if ever. They CAN'T chase you very far or very long. They dont have either the resources OR the necessary motivation. YOU, however, have the ULTIMATE motivation, to go as far and fast as you need to, to elude them. YOU get to set the pace, PICK the terrain they will HAVE to traverse, turn, double back, etc, and all THEY CAN DO is TRY to follow, TRY to GUESS which way you will go. You can move at night, they can't track you at night (with sufficient speed, without being lit up TARGETS). you can hole up days, they HAVE to move in daylight, make noise, become TARGETS. Once you shoot 1/4-1/2 of them, they will realize what a bad idea it is to follow you further. There wont BE any large groups trying to follow you. NOt that many will be available, nor will they care what you did (enough to risk their lives, and their family's lives, to pursue you for weeks and months on end.