The National Security Planning Agency, now renamed the National Intelligence Service (NIS), was learned to have covered up the case of a Suzy Kim, who was murdered by her husband Yoon Tae-shik, as an espionage case and failed kidnap attempt by North Korea. The NSPA head at the time, Chang Se-dong, was directly implicated in the affair, and a police investigation into the case was stopped at the request of the NIS last year. In addition, questions remain in the suspicious death of Seoul National University Professor Tsche Chong-kil, which Korean Central Intelligence Agency (the pre NSPA) called it a suicide in 1973.