what would make an infinti not crank? on 2000 Infiniti I30

was traveling and car just lost power, it shut completely off and now it want crank has never done this before

Asked by for the 2000 Infiniti I30
poss starter or main pwr fuse blew
were is the main pwr fuse located
what is the poss starter
1 more answer
Agree with Greg. Also, have the alternator checked. May have failed or belt to it may have broke.