I recall a Rav Miller tape where he discusses the subject of a child dying. I was somewhat comforted when he pointed out that the child is compensated with an oylum habo as if he had toiled and lived to be an old and successful yiras shomayim which we believe is our purpose for living in this world to begin with.
Notwithstanding what Rav Avigdor Miller said, he lost a grandchild about 2 months & 9 days before his own passing away, and this was the beginning of his own deterioration health-wise, having to deal with the awful tragedy of a grandson’s passing away.
Meanwhile, takahmamash’s 1st question should have been:- “Sheluchei Mitzwhoh Lo Nizokin”, so how do we explain the violation of this so well known principle, when someone on the way to Shul, the holiest of all Mitzwohs, was killed on the way to performance of such a tremendous Mitzwh?