In my opinion, I believe that it was Friar Lawrence and bad timing fault. The reason being is because of the overall story. Friar Lawrence suggest that Romeo and Juliet to get married- which contributed to Juliet's father's rage and various events because of this suggestion. Not only so, but Friar Lawrence gave Juliet the sleeping potion for her fake ‘death’. “A sleeping potion; which so took effect // As I intended, for it wrought on her // The form of death: meantime I writ to Romeo, // That he should hither come as this dire night, // To help to take her from her borrow'd grave, // Being the time the potion's force should cease (Shakespeare 5.3). Lawrence also failed to deliver the message to Romeo causing the distress afterwards in the church. Along with Lawrence's actions, the timing was horrible. If Romeo waited for Juliet to wake up, then maybe their story could have worked out. If Lawerence didn’t leave Juliet right away, maybe she would have not stabbed herself. Overall, I feel as if Romeo’s and Juliet's death was responsible from timing and Lawrence.
Hope this helped.
bic
