The Daily Presents “Caliphate,” Chapter 5

The New York Times has introduced a documentary audio series that follows Rukmini Callimachi, who covers terrorism for The Times, on her quest to understand ISIS. Today, as a special episode of “The Daily,” we offer Chapter 5 of “Caliphate,” in which an ISIS recruit carries out a killing — then questions everything.

The next episode of “Caliphate” will publish in the series’s own feed next Thursday, May 24th, and as a bonus installment of “The Daily” next Saturday, May 26th. New York Times subscribers can listen to that episode now at nytimes.com/caliphate.

This episode includes disturbing language and scenes of graphic violence.