2001 Saturn L200 car will not start

Electrical problem
2001 Saturn L200 4 cyl Two Wheel Drive Automatic

i drove the car al day the other day and pulled into a store parking lot. i shut the car off. when i had gotten inton the car to leave it backed up than i put it in to drive than i lost all power. the lights, stereo, and wipers etc.. work. we replaced the coil but that did not help.. we have fuel pressure but it still will not start. help.,,,,,,,,,,,,