Could really use some help!!

So today I was on my way home from New Jersey, which is about an hour all highway. The jeep ran great all weekend, except on my way home it stalled out 3 different times while at highway speed. When it stalled I would get out and check under the good and everything seemed tight and in good shape, messed with the wires and let it sit for a little bit and it would restart. However the third time it never started so I had to get towed home. The motor would crank but not fire over, I noticed while cranking it, it seemed to kinda smell like rotten eggs. My thinking is saying maybe it's the fuel pump, but I am not sure. The plugs, wires, cap, rotor, and ignition coil are new, the exhaust from header back is less than a year old. And has a new O2 sensor. And it passed emissions in November with flying colors. So exhaust should be okay, i should have good spark, so I can only think a fuel issue now. And it has a 1 year old fuel filter also. So I'm leaning toward fuel pump but I don't know to be honest. Any thoughts please?!