[Nonstatist]

To be fair though: if Truman Capote did indeed write it for Harper Lee, he clearly meant it to be hers. We should respect that.

To be fair again, he claimed many times publicly to have written the majority of the book, but by that time many (liberal) people stopped listening to the old washed up dandy.

To be fair again, many of the metaphors in the book are clearly Trunmanesque , IMO, even down to the title. . But I guess thats water under the bridge.

[agere_contra]

he claimed many times publicly to have written the majority of the book

Did he? I had this idea of a romantic gift from Truman to Harper - and that might still be true I suppose - but if he's publicly claimed authorship then that does rather clinch the matter. Because the style is his.

[Styria]

If he claimed that many times publicly, cite them.