Marcus du Sautoy meets a detective with a PhD in mathematics who has created a probability function that can help narrow down the area in which a serial killer is likely to live. The case of Jack the Ripper is outlined, and the probable street where he lives revealed.

Originally released by BBC Worldwide Learning, 2020. Streaming video file encoded with permission for digital streaming by Infobase on October 27, 2020.

Dial M For Murder (Using probability functions to help locate serial killers) (4:33); .