1999 Chevy Silverado The truck won't start

Hello.
A few days ago we drove approximately 500 miles for a family trip. After we filled up the gastank the second time we had just enough gas to make it home. My daughter then went out the next morning and drove a little bit around town. Later in the day, as I was driving down the street, the truck began to act as if it were out of gas. Sputtering and jumping. I put about five gallons of gas in the tank and went to Sonic for a beverage. While waiting at Sonic the truck just turned off. I tried to start it, but it refused. We had the truck towed to our home where we began looking at it yesterday.
I thought there might be some water or debris in the fuel system so we poured alcohol into the choke to dry it out. My brother sprayed in a can of choke and carb cleaner as I attempted to start the engine. We got it started a few times, but the engine would always die out after a few minutes. It doesn't really sound like there is gas going into the combustion chamber, but I don't know what to do to make it do so. The truck is fuel injected.

Thank you for your time,
Robert Glenn