2004 Explorer NXB 4x4 wont start

sounds like the alternator died on ya. have both the battery and alternator tested.

I'm thinking very bad gas at the station because of the poor running and clattering noise.

I stopped at the gas station for coffee not gas. Sorry I should have clarified that.Would the battery or alternator dying cause the clacking sound I heard when the engine died?

Pulled battery, alternator and Starter, All tested good. Took a battery off of another truck and it still did the same thing. Removed serpentine belt and checked all the pulies and they all moved freely. Only thing I didn't check is to see if the crank can move freely, I did notice that when I try to start the vehicle the belt seems to lurch but doesn't want to turn. Any ideas would be appreciated.

If you can't even put a wrench on the crank pulley and turn the engine over, then there are bad things wrong in there. If you can get it to turn with the starter do a compression test.