Shut off while stopped at a red light and would not restart?

I was heading to work; the truck was running well and all of a sudden it just shut down when I stopped at a red light. The engine cranks but will not start. I checked all fuses were all good, fuel pump is good and running. Checked the fuel shut off it’s good and working correctly. I did a bypass to make sure it’s working correctly, it’s good. Made sure it had air flow getting good air flow. Help, I can’t figure it out. Also, checked wiring is good. Used a push button start cranks over but will not start.