Two unemployed men, wanted in connection with the killing of key ICAC witness Tommy Chui To-yan in Singapore, have been charged with conspiracy to murder and conspiracy to pervert the course of justice. Johnny Cheung Wai-ming, 40, and Wong Kwong-kai, 30, will appear in Eastern Court this morning. They had been held in China since their arrest in April 1995 and February this year respectively and were handed over to the Independent Commission Against Corruption on Thursday night by Public Security Bureau officers through Interpol agents. Cheung and Wong have also been charged with conspiring with Cheng Hing, Cheng Wui-yiu, Lee Yiu-man and others to stop Chui from being a witness in the trial of Henfrey Tin Sau-kwong, Chong Tsoi-jun and Yeung Kam-fai. Their return is the first time the Chinese authorities have handed over suspects wanted by the ICAC.