rx8 died wont start

Hey this is my first post and need some help. I have a 04 Mazda rx8 that won't start... Has 100k miles and all stock. I was on my to payson from Phoenix when my car left me stranded on the side of the highway .. got it towed home it had a dead battery from trying to start it the day it broke down. Charged the battery and car started rite up. Drove it for about two weeks and car dies again and now won't start at all. It has new plugs wire coils and e crank sensor . The only code it's giving is u0073