The Hendricks family murders case is discussed at great length in a July, 2021 episode of the true crime podcast “Twisted & Uncorked”—produced by two friends in two countries.
Co-host Sierra does a credible job of re-telling the story (“…so many twists and turns,” she says) and offers a few opinions.
Their website contains a number of links to other coverage of the case–including to a couple of the several not-in-the-book files in the “Clippings” section of this website.
You can listen to “Twisted & Uncorked” wherever you find your podcasts. The Hendricks case is episode 26. Here’s a link: https://twistedanduncorked.wixsite.com/podcast/copy-of-resources