Agus Triyono, Ronna Nirmala & Ezra Sihite – Relatives of high-profile graft suspect Muhammad Nazaruddin allegedly threatened to kill key witness Mindo Rosalina Manulang in an attempt to force her to revoke her testimony against the former Democratic Party treasurer.

"They are H.S., A.A.N., and N.S.R.," Rosalina's lawyer, Muhammad Iskandar, said at the Witness and Victim Protection Agency (LPSK) office in Jakarta on Thursday. "They wanted Rosa to revoke her testimony that might be incriminating for Nazaruddin."

According to Iskandar, the relatives visited Rosalina's cell in Pondok Bambu prison on the nights of Dec. 26, Dec. 30 and Jan. 2 to deliver the threats. He said it was unclear how they managed to gain entry to the prison after official visiting hours.

"They threatened, 'I will kill you and your family if you don't revoke the investigation report [BAP]'," Iskandar said. He added that his client was unswayed by the threats, and would not be backing down from her original testimony.

Rosalina is a former manger of Anak Negeri, a company owned by Nazaruddin. She acted as a broker between the Sports Ministry and construction company Duta Graha Indah during the construction of an athletes village for the Southeast Asian Games held last November.

She was found guilty of colluding with Duta Graha regarding kickbacks for Nazaruddin, who reportedly received Rp 4.3 billion ($470,000) from the construction company for rigging the tender.

Rosalina was sentenced to two and a half years in prison for providing Rp 3.2 billion in bribes to Wafid Muharram, secretary of the Youth and Sports Affairs Ministry.

National Police detective unit chief Insp. Gen. Sutarman said that Rosa would be protected in a safe house provided by the LPSK and that police would investigate the threats. "A threat is a crime," Sutarman said. "We will protect the witnesses of corruption cases."