1994 Other Saturn Models Starting Problem

4 days ago i went to a friend. I stop the car got inside for 10 minutes when i come back! No more starting nothing!! No clicking, No cranking, no nothing! I tried to jump start the car Nope didn't worked. I Changed my Starter ..no starting...What could it be... reminber no clicking and no cranking... If it would be the battery the starter would click..everything work in the car(Radio, light...) If it would be a Firing problem the car would Crank but no nothing!! HELP!!! Thank you Im waiting for the answer.