A guide to make your audience cry:
1. Introduce a likeable character. Should usually be fuckawesome or a complete Mary Sue (Mary Sues are a risk, if you don't hide it well enough then many will just dislike her/him because of the prefection).
2. Develope the character. If not a main, interact with mains and add to major storylines.
3. Now that your character is quite likeable, show his backstory and present his goals. It's almost time to close the curtains, so don't leave any holes in the character, as to not "Revive" him too much using too many flashbacks (unless it's the classic "I know what the villian's goals are really are!").
4. Kill him mercilessly and enjoy your audience's delicious tears.
Did I miss something?