Juliet's death might easily be blamed on Friar Lawrence's failure to communicate the intricacies of the plan to Romeo.
Friar Lawrence leaves Juliet after discovering Romeo has killed Paris and has taken his own life. Rather than stay in the tomb to console Juliet and to make sure that she doesn't do anything rash, Friar Lawrence runs away in fear.
Then, again, Juliet's death might easily be blamed on the foolish feud between the two families. Had the families put their differences behind them and moved on in a rational manner, the outcome may have been different. I think the families problems were the lesser cause of her death, but a cause of both Romeo and Juliet's deaths.
I really think the whole plan of faking her death, the failure of the communique' to Romeo, and the murder/suicide at the tomb all contributed to Juliet's death. When she awakened from the potion, she was alone in a tomb with her dead fiance and husband. She was overwrought and took her own life.
Had Juliet not been left alone in the tomb with the dead men, the outcome may have been different. But, then the play would not have been a tragedy. Since the idea of faking her own death was Friar Lawrence's, I think the responsibility of her death and the death of Romeo is with him.
Romeo. To me, that is who is to blame. If he had not went to the party in the first place, he would not have started this all. He would have not met Juliet and wanted to be with her. He would have fallen in love with another, as would she, and they would have lived.
Yet, if he had not gone, it wouldn't be much of a story, would it?
There many people to blame really. All those, part of the story led to the deaths. You could pick anyone, and try to relate it to the death.
But, then again, what does anyone, not there at the moment to see it play out, know?
i believe that many can actually be blamed for the deaths of romeo and julet, the parents,for one. the fued between the montagues and capulets have made it almost impossible for anyone to show friendships or relationships as the town is so separated. juilets family is most to blame , as they have pushed juilet over the edge by trying to get her to marry county paris even when she refuses. there is also friar lawrence and the nurse to blame as they are both looked upto by romeo and juilet, and for them not to even consider the consequences of them helping the lovers and the negative side of everything shows that they could of helped prevent the whole suitation in the first place. also many blame other people for the deaths of romeo an juliet and have forgotten that they both played a major part in their own deaths. romeo and juilet jumped straight into any type of option for them to be together,and did not ever stop to think that they should handle their suitation peacfully and tell there paretns of what was going on, or even just to take things slower to see how strong their realtionship actually was.