Is There Yet Another Harper Lee Manuscript Stashed Somewhere?

Beginning in 1978, Lee visited Alexander City, Alabama to research the case(s) of Reverend Willie Maxwell, suspected in the death of five different family members but never convicted – and ultimately shot by another relative. Lee told Maxwell’s lawyer that she was working on a big In Cold Blood-style book and collected huge files of material; now the lawyer’s family wants to know what’s left of it, and where.