Story highlights
- Park Sang-hak says he wants his countrymen to know the truth about Kim Jong Un
- North Korea denies any involvement in the death of Kim Jong Nam
Park Sang-hak, who says he defected in 1993 after picking up a leaflet sent from South Korea, told CNN he wants to show ordinary North Koreans the true nature of the country's leader.
Kim Jong Nam was the eldest half-brother of North Korean leader Kim Jong Un.
South Korean intelligence officials say the North Korean leader directly ordered the killing, a claim Pyongyang vehemently denies.
"Even South Koreans were shocked to hear the news of Kim Jong Nam's assassination," Park said.
"Can you imagine how North Koreans will react?"
Park hopes the leaflets, SD cards and USB drives will offer people inside North Korea a glimpse of the outside world, including Kim Jong Nam's death.
Pyongyang considers it a hostile act and tells its citizens the leaflets are South Korean propaganda, defectors say.