A New Zealand man has returned to Cambodia to seek answers about his brother's death from the Khmer Rouge leader responsible.
Kerry Hamill was tortured and killed at the Phnom Penh prison run by Kaing Guek Eav, also known as 'Comrade Duch', in 1978.
Duch was sentenced to 35 years in prison last year for overseeing the deaths of up to 15,000 people in the 1970s.
Rob Hamill wants to know where his brother is buried.
He says 'Duch' is seeking a pardon, while prosecutors are calling for a longer sentence. He will make another request for an interview once legal arguments have finished.