In Shakespeare's play "Romeo and Juliet", Friar Lawrence is solely responsible for the deaths of Romeo and Juliet.
The Friar agreed to marry them secretly. As result they had a much stronger bond between them which was created through marriage: "For, by your leaves, you shall not stay alone, till holy church incorporate two in one." (2.6.36-37). His plan was poorly thought out, and risky. Friar Laurence thought of the plan in a rush and in desperation because Juliet was threatening suicide. Juliet says "Unless thou tell me how I may prevent it. If in thy wisdom thou canst give no help, do but call my resolution wise and with this knife I'll help it presently" (4.1.51-54).
To avoid marrying Paris, Friar Laurence gave Juliet a potion to fake her death. In Friar’s religion, it was a sin to marry someone who is already married. He didn’t want to marry Juliet and Paris. Friar promises to send a messenger to inform Romeo of the plan, so that he can rejoin her when she awakens but, the message never arrived. Friar John told Friar Laurence, “I could not send it, here it is again. Nor get a messenger to bring it thee" (5.2.14-15). Friar Laurence forgot to tell the messenger that it was important that Romeo get the letter.
Friar Laurence is solely responsible for the deaths of Romeo and Juliet. He was quick when making decisions and he made a few bad chooses. In trying to please everyone, he pleased no one. He married Romeo and Juliet; he gave Juliet the potion and failed to get the letter to Romeo in time.