Jeff,
At this point you really need to start to "Peel the Onion". The first place to start is to install the jumper into the test connector and see if you get any codes from the ECU. Bsically there are two ingredients you need, spark and fuel, so you need to determine which one is the problem.
If you get a code it will tell you possibly about a bad part(one possibility is the crank position sensor). If you do not get a code I think the fuel system is where you will end up. Fuel pump relays seem to be troublesome on higher mileage cars. You can just see if you can borrow a FPR and try it, or you should get a fuel pressure gauge on it while it is cranking.
Anyway, I would try to dump the codes and see where it leads you. Let me know what you find.
HTH,
LarryB