In this task, you will be given a passage, a question and a list of single-word events identified from the passage. The goal is to point out all events from the given event list that can answer the question. If a question is unanswerable or none of the events answer the question, output should be empty.

Passage: Newspaper reports have said Amir was infatuated with Har-Shefi and may have been trying to impress her by killing the prime minister. Har-Shefi acknowledged she told police interrogators that Rabin was a traitor and that she prayed for him to have a heart attack and die. Question: What happened before a possible heart attack? Events: ['said', 'infatuated', 'impress', 'killing', 'acknowledged', 'told', 'was', 'prayed', 'attack', 'die']

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
prayed