See if you can help me figure out what wrong...

I've got a '99 Bonne' with 289,000 on the odometer; on my way home from work yesterday I was cruising along on the highway, had the cruise set at 57 and the engine stopped all of a sudden like someone flipped a switch. All the electrical was fine. I coasted off the highway and cranked on the starter for about a minute before giving up. I then started looking for a tow truck number to call. While waiting there 5 minutes, I thought I'd try starting it one more time before calling the tow truck and it started right up. I drove home.

A few hours later I drove to rehearsal about 4 blocks from home, it sat for an hour and I drove back.
Another hour later I was going to take the Bonneville to the store to buy libations for the 4th and all I could do was crank on the starter again; it would not fire.

I can hear the fuel pump run, that was my original thought.
My father is suggesting it could be a positioning sensor.

Any thoughts or ideas would be great; I don't want to have to pay someone else to fix something I could if I knew what the problem was.

Crank sensor is a good bet.

I'd go ahead and replace it and see what happens.

Could be the crankshaft position sensor. Or a bad ground somewhere. I'd bet a CKP tho

What they said^^^

Hello Bonnie buddy...

I'd start with the crank position sensor as well.

That's where I'm going start... with the crankshaft position sensor. My father is going to visit me next weekend and bring a puller for the harmonic balancer, so it'll have to wait until then for a possible conclusion.
So I'll have to drive the GTP to work this week and make sure I take an extra moment to clean up after work before getting in.

You need special bolts for it bill knows the size off the top of his head.

10M is what the guy at work told me.
I am planning on asking at NAPA when buy the sensor, hopefully the guy there knows what he is talking about.

I have a week to do some more reading.