Valerie Bauerlein — The Devil at His Elbow: Alex Murdaugh and the Fall of a Southern Dynasty
During a book signing at Politics & Prose Bookstore and Coffeeshop in Washington, D.C., about a year ago, VB answered a question from the crowd about Buster M where she confirmed that Buster did plagiarize from his then girlfriend's (now wife) law paper, and that the money Alec paid to "fixer" Karl "Butch" Bowers was tracible to have a direct link to the funds that were stolen from the Satterfield boys. I'd never heard the background about the plagiarism story before, or how Buster allegedly benefited from Alec's deed.
(This passage is provided on YT at about the 47-min mark).