What causes a 2001 Pontiac Bonneville to not fire at all

There are lots of things that could do it.do you have spark?is there fuel pressure?

Yes, the only thing is the coils have stopped firing and the car shuts off. Sometimes the car will run perfectly fine, then out of nowhere it will start missing and shut off and the battery has also been dying every night, we would have to charge it every morning. We recently went out of town, the car drove fine on the way down for two hours, we drove it back and forth to the store a few times with no problems other than having to jump the battery, then on the way to the store we drove about a mile and it started missing real bad, was running like it was completely out of gas, but it wasn't. Made it to the gas station, charged the battery, added water, gas and it acted like it was fine, got another mile down the road and it started missing and running like crap. Finally got it back to the house and looked under the car and the catalytic converter was glowing, so we gutted it. After that we drove it back home from out of town and it was fine, drove fine for a couple of days. Then we rode a mile up the road to the store and came back out and as soon as we went to start it, it was missing again, took an hour of playing around with it just to get it back home. The car has been sitting for 3 days now, I just cranked it up with a little hesitation, but it seems to be running fine, not missing...have no idea what could be causing this