For years, Mark Koster was presumed gone—declared dead without a body ever being found. But when his remains surface inside his own home, investigators must unravel how a killer hid in plain sight and how one confession finally exposed the truth behind a death that went unnoticed for years.View source material and photos for this episode at: anatomyofmurder.com/the-man-beneath-the-floorboardsCan’t get enough AoM? Find us on social media!Instagram: @aom_podcast | @audiochuckTwitter: @AOM_podcast | @audiochuckFacebook: /listenAOMpod | /audiochuckllc Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.