The 23-year-old woman in South Korea was obsessed with crime shows and hunted for victims on a tutoring app.

A South Korean court has given a life sentence to a true crime fan who told police she murdered a stranger “out of curiosity”.

Jung Yoo-jung, 23, had been obsessed with crime shows and novels and scored highly on psychopath tests, police said.

Fixated with the idea of “trying out a murder”, she used an app to meet an English-language teacher, stabbing her to death at her home in May.

The brutal killing shocked South Korea.

Prosecutors had asked for the death penalty - a request typically reserved for the gravest of offences.