DAP veteran Lim Kit Siang today poured cold water on Prime Minister Najib Abdul Razak’s promise to Tenang folk that the government will unravel the mystery behind Teoh Beng Hock’s death.

Lim said that the only way to find out Teoh’s cause of death was to allow a royal commission of inquiry to probe the matter, especially since the coroner in the recent inquest had ruled that there were pre-fall neck injuries.