My opinion (you don't have to go by this its just a thought and I think this is interesting. I like writing.)
I feel that Friar Laurence is to blame for the death of Romeo and Juliet because one he is the one who secretly marries the two lovers, he hides Romeo, and he provides Juliet with the sleeping potion. Rather than talking Juliet out of the tomb and this "trick" he leaves Juliet. Friar also fails to speak with the parents and seeks to lighten their hatred. Friar's actions go completely against his religious vows as well as being unfair or unjust.
Try something like "In conclusion, all of the characters named above can be blamed for the deaths of Romeo and Juliet. However, Fate played the largest part in killing the starcrossed lovers."
