if ignition is on and plugs are fired. the only left is fuel supply. last time they pull the fuel supply hose that connected fuel rail and put in a bottle. then crank the car. fuel should shoot out very fast. if that's the case could be your injector? check every resistance of the injector. the reading should be consistence. but by right at least your engine should start by now not all injector kaput. you got fire you got fuel. if not your compression which related to the valve sealing could be issue?