Thanks orson.
1d is hidden with 2 extra letters removed. It is what is usually at the front or back of a book.
1a Light is three letter acronym. Think Ait and change last letter.
I figured out the phrase and the victim in 21a. But have not figured out all 12 names.
I have H?D?? for 12d,
And KA?is for 27d.