04 mustang won't start...

my car died on saturday and i thought that it was b/c the system my fiancee but in it drained the battery b/c it hadn't been driven in a couple of days so on sunday we got a jump and drove the car a put some gas in it and he drove it to work monday, yesterday and today and when he got into the car at lunch time it won't start and won't even jump. but the car will turn over just won't start. anyone know what could be causing it??

well found out what it was..my fuel pump went out