In the final weeks before the execution date, the defense team has to decide just how far it’s willing to push people to save David Wood’s life. The team’s deliberations lead to a key witness on his deathbed … and the mother of one of the Desert Killer’s victims. To find out about new shows from Serial Productions, and get a look behind the scenes, sign up for our newsletter at nytimes.com/serialnewsletter. Have a story pitch, a tip, or feedback on our shows? Email us at [email protected] Hosted by Simplecast, an AdsWizz company. See pcm.adswizz.com for information about our collection and use of personal data for advertising.