Alvin Melleth

The last 12 weeks is written and reported by me, Maurice Shema, and Alvin Melleth.

Alvin produced the series.

Jen Guerra edited the series, along with Anita Batajo.

Julie Snyder is the executive editor for Serial Productions.

Additional editing from Akiba Solomon and Sarah Koenig.

Fact-checking and research by Ben Phelan.

Music supervision by Jen Guerra and Phoebe Wang.

With mixing by Phoebe Wang.

Additional mixing by Katherine Anderson.

Tracking direction from Sean Cole.

Our associate producer is Mac Miller.

Additional production by Anita Batajou.

There's a lot about the death penalty that we couldn't fit into this show.

Stories from capital defense lawyers, a fascinating look at the data behind executions.

You can find all of that in our newsletter.

Sign up for it at nytimes.com slash serial newsletter.

The Marshall Project, where I work, is a nonprofit newsroom that covers the criminal justice system.

To learn more, visit themarshallproject.org.

Original music for this series by Adam Dorn, a.k.a.

Motion Worker, Matthias Bossi, and John Evans of Stellwagen Symphonette.