My BIL has been heard from, so we know that he didn't hurt himself yet. He still cannot be found and apparently slept in his car last night. This whole situation happened because of some severe marriage problems that he and his wife started having when my niece was about 3 months old. It sounds like their marriage might not be making it much longer.
Thank you for all of the support! I know we aren't in the clear, but at least knowing that he didn't harm himself is a step to the right side of things.
Re: T&P update