Sharing the Book of Mormon with my best friend

Sharing the Book of Mormon with my best friend is extremely exciting but also terrifying.
This best friend of mine is the most intelligent person I know, and also one of the most rational and logical. When I saw him last, which was when we were saying goodbye as I was moving from Holland to BYU and he was moving from Holland to the UK, I gave him a Book of Mormon with a note bearing my testimony and imploring him to read it. Since then, he's started reading it daily, and asking me questions.

The thing is, he's only reading it an academic point of view, to gain better insight into my religion. But I want him to feel the Spirit and start reading it with the intention of finding out if it's true. I want it so much it hurts. Because I know that if he does, Heavenly Father will reveal the truth of the Book of Mormon to him. I have absolute faith that He will. I just need my friend to consider the possibility that it's true and ask sincerely. And then if he does, and joins the church, his life will be immeasurably blessed, and there's nothing more I could want for him than that.

But it seems like he'll never make the jump from reading it educationally to reading it to find out if it's true. And in the meantime, he asks me questions, questions that I can't always answer, like "Why did Nephi have to kill Laban, instead of getting the plates some other way? If murder is morally wrong, and God's laws never change, why did he command Nephi to do this?" And I'm afraid he'll be totally turned off by something he finds, and think me blind for believing in it, and never consider if the church is actually true.

All I can do is pray, pray as hard as I can that he'll feel the Spirit, and maybe drop subtle hints here and there.