One may say that Friar Lawrence is guilty because he secretly married Romeo & Juliet and he came up with a bad plan that got R & J killed, but Lawrence is not guilty because neither claim led to R & J's death. Lawrence marrying R & J was merely him joining two lovers in marriage. R & J already loved each other, and their marriage didn't further their love, it was merely a symptom of their love. Furthermore, Lawrence's plan did not lead to R & J's death because it wasn't his fault the plan failed. The plan did indeed have flaws, but the flaws were not his fault and there were multiple workarounds. Juliet could have suggested another plan if she came up with a better plan. Also, Lawrence was not responsible for the crucial letter not being delivered, and neither was Friar John, for that matter. He merely got stuck and was unable to deliver the letter because of being quarantined. The plan not working was not Lawrence's fault, the plan just went wrong for separate reason that couldn't be controlled. An action could have been taken to try to avoid these flaws by revising the plan to try to prevent things going wrong, but even still there was nothing that could be done on Lawrence's part to prevent the plan from failing.

Some might say that Friar is guilty because he came up with a plan and kept secrets. But Friar is INNOCENT because if he didn't keep the marriage a secret, the plan would have never worked. If the Montagues and Capulets found out, the feud would have gotten worse than it was because of the controversy of Romeo and Juliet marrying. Therefore, the marriage had to be a secret in order for the plan to work.