United States prosecutors are looking to hold people criminally accountable for overdose deaths. They\u2019re settling on unexpected targets: other users. Guests: Annie Brown, a producer for \u201cThe Daily,\u201d\xa0speaks to Kimberly Elkins, whose fianc\xe9, Aaron Rost, died of a fentanyl overdose; Krista Powell, Mr. Rost\u2019s sister; and Rosa Goldensohn, who has reported on the opioid crisis for The New York Times. For more information on today\u2019s episode, visit nytimes.com/thedaily.