On the second day of Vice President Sara Duterte’s impeachment trial, two National Bureau of Investigation (NBI) witnesses are scheduled to take the stand for the prosecution. In one report, senior NBI agent John Mark Calilung appears as the first witness after being presented by private prosecutor Amando Virgil Ligutan. His testimony relates to allegations that Duterte threatened to kill President Ferdinand Marcos Jr., the President’s wife, Liza Marcos, and former Speaker Martin Romualdez. The threat allegation is cited in the fourth article of impeachment filed by the House of Representatives. Another outlet reports that an NBI official and an NBI agent are among the first witnesses to testify for the prosecution on allegations of grave threats. The sources describe the witnesses as part of the early presentation of evidence in the trial, with additional witnesses expected as the proceedings continue.