I requested the book "My Sweet Angel" on 12/10/16 and received notice that it was on order and would arrive shortly. It's over one year later
I will forward your question to our collection manager to see if we can find out what happened. In the meantime--it appears the book (if it is My sweet angel : the true story of Lacey Spears, the seemingly perfect mother who murdered her son in cold blood by John Glatt) is available at the Baright (Ralston) Public Library. As an OPL patron you have borrowing privileges there (take your OPL card with you to set up an account with them), or you could request it via interlibrary loan (that option involves a small postage charge).
I hope this helps! I'll get back to you as soon as I find out anything.