1993 Jeep Laredo change fuel filter

Help, it's me again. This time it is about my husband's 1993 Jeep Cherokee Grand Larado. Do you have a video or something that can help us with this.

The truck was running fine, but after turning off the jeep, it wouldn't start back up. All it will do is crank over but will not start.

Changed to fuel pump relay thing under the hood. It still will not start.

Purchased the fuel pressire checker thing so we can check this vehicle as well as my son's 87 camaro.

We also purchased the fuel filter, spark plugs and wires, distributer cap and rotor button. Any other suggestions?