Oh, this has reminded me, not actually new news at all but I don't think it's well-known... in around 2015/2016, a Chilean anarchist called Joaquín García was sentenced to prison for an attack against a police station. He ended up at the same prison as
Álvaro Corbalán, who was head of the intelligence service under Pinochet. It being a prison, there's CCTV footage of the occasion when they met:
Spanish article about it here:
El video fue publicado por la periodista Alejandra Matus. En la grabación se confirma la golpiza a Corbalán por parte de Joaquín García.
www.24horas.cl