David Edwin Mason. Executed in the notorious “Coughing Box”. Here’s why. For Exclusive Content www.patreon.com/darktopic Sources: California Executed Inmates Executed Inmate Summary - David Edwin Mason - Capital Punishment LA Times Archive 1993 https://www.latimes.com/archives/la-xpm-1993-08-22-mn-26483-story.html People v. Mason PEOPLE v. MASON (1991) | FindLaw The Executioners Tale Former San Quentin executioner reveals how he killed prisoners with no training | Daily Mail Online Our Sponsors: * Check out Factor 75 and use my code darktopic50 for a great deal: https://www.factor75.com/ * Check out Rosetta Stone and use my code TODAY for a great deal: https://www.rosettastone.com/ * Check out True Crime Feed : https://linktr.ee/truecrimefeed * Check out Wooga: https://www.wooga.com/games/junes-journey Advertising Inquiries: https://redcircle.com/brands Privacy & Opt-Out: https://redcircle.com/privacy