Student or Learner
still unclear on certain things. for example, if i 'm writing a story, it be like , leon killed the monster in the police station., right?
but if i 'm talking to a friend about a story event, it should be like, leon kills the monster in the police station., right?
Leon kills the monster....
If it happened earlier, use the past tense.
Now, the fact is that people often switch into the present tense to tell a story about a past event, whether they are writing a story or talking to someone. (And this would always be the case if you were writing the narrative of a play or movie script.) If you do it consistently it is not wrong. It is a matter of style.
If you are telling an exciting story, feel free to use the present tense!