Went to turn it over and that is all it did, it did not even try to catch and run?

Ok guys here is one for you. I have a 1995 oldsmobile cutlass ciera with about 140,000 miles. Just replaced the front wiring harness, fuel pump, fuel strainer, and fuel filter. Also did a major tune up recently (plugs, wires, filters, etc.) Well the major conundrum is it will no longer crank. My wife was driving down the lane and ran out of gas, we stopped and got some gas in a can and put in about five gallons. Went to turn it over and that is all it did, it did not even try to catch and run.

I went through meticulously checking all fuses, relays, and electrical stuff. I checked the fuel pump and it was coming on, so I checked the filter, and the fuel flow was pretty strong. I checked if the car was firing and of course it was. Im not sure, but I dont think it could be a timing chain issue as she just simply gave out of gas, but I could be wrong.

I have asked several mechanics around the area and they all dont seem to have an answer. I have already spent over 700 dollars on this hunk of junk and I do not want to spend much more on it, as if I were to sell it now, I would never get what I have put in it over the last few weeks. HELPPPP!

I would desperately appreciate any input any of you can give me!


***EDIT***

I was also wondering if there was some sort of fuel cut off switch that would stop the fuel from getting from the fuel filter to the engine. I know there is some on a lot of fords and a few others, but not sure if there is one on mine. If there is can you tell me where it is.