All murders are shocking, but few unsettle a nation in the way that of Rachel Nickell did in 1992. She was stabbed 49 times while walking on Wimbledon Common during the day with her two-year-old son, Alex. The viciousness of the attack, in a public place and in front of a child, lingered darkly in the minds of the public, especially since Alex being the only witness enabled the killer to remain at large for years.
It is a crime that has been discussed, analysed and dramatised, but never quite in the way The Witness does. Across its three episodes, narrative emphasis rarely falls where we expect it to, because the main characters are not the police or the killer but the family Rachel left behind: Alex (Jahsaiah Williams, then Max Fincham as the older boy) and his devastated father André (Jordan Bolger). This harrowing new perspective proves to be rewarding.
