Prosecutors bring cause of death for JJ Vallow, Tylee Ryan, and Tammy Daybell to the forefront of the trial. A lack of trust in Vallow Daybell is revealed when jurors hear emotional testimony from Summer Shiflet, Vallow Daybell’s sister. Tammy Daybell’s sister also speaks. CBS News national correspondent Jonathan Vigliotti and "48 Hours" producer Richie Fetzer bring you back inside the courtroom for week four of the trial. #48hours #lorivallowdaybell #cbsnews Crime. Social justice. Impact. "48 Hours" investigates the most intriguing crime and justice cases that touch on all areas of the human experience including greed and passion. "48 Hours," which premiered in 1988, has developed a rich history of original reporting and impact journalism that has helped exonerate wrongly convicted people, caused cold cases to be reopened and solved, and along the way changed lives. Subscribe to the “48 Hours" YouTube channel: https://www.youtube.com/@48hours Watch full episodes of “48 Hours”: https://www.cbs.com/shows/48_hours/ Listen to the "48 Hours" podcast: https://link.chtbl.com/48-Hours Listen to the "My Life of Crime with Erin Moriarty" podcast: https://link.chtbl.com/CBSNewsMLOC Follow “48 Hours” on Instagram: https://www.instagram.com/48hoursCBS/ Like "48 Hours" on Facebook: http://on.fb.me/1KkQuRn Follow "48 Hours" on Twitter: https://twitter.com/48hours Subscribe to our newsletter: http://cbsn.ws/1RqHw7T Download the CBS News app: http://cbsn.ws/1Xb1WC8 Try Paramount+ free: https://bit.ly/2OiW1kZ For video licensing inquiries, contact: licensing@veritone.com
