[5] The Philippine Senate also launched an inquiry regarding the incident, and invited the representative via teleconferencing but ultimately withdrew due to legal uncertainties.

[11][12] He was rushed to Negros Polymedic Hospital in Sibulan, but was pronounced dead at 11:41 a.m.[13][14][15] Eight other people were also killed in the shooting;[16] another died more than two months later.

[42][41] In a privilege speech in Congress, Talino at Galing ng Pinoy (TGP) party-list representative Jose "Bong" Teves Jr. clarified that he was not the "Cong.

[43] Earlier, to dispel speculations that he was involved in the killing, Arnolfo Teves Jr. said he was undergoing stem cell treatment in the United States at the time of the attack and therefore could not have planned the assassination.

By April 2023, his whereabouts became unknown, with the Department of Justice saying he was in Cambodia, and Senator Joel Villanueva saying he was sighted in South Korea.

[49] On July 26, 2023, the Anti-Terrorism Council designated him, his brother Pryde Henry and 11 others as terrorists due to their links to "alleged killings and harassments," including Degamo's murder, in Negros Oriental.

[54] As of 13 September, the Justice Department believes that Teves is in hiding somewhere in Southeast Asia, purportedly under the protection of local warlords.

[7] In a conference with the media after the arrest, the Department of Justice acknowledges that the Philippines has no extradition treaty with Timor-Leste, so they are using other channels to bring Teves back to the country as soon as possible.

[61] The Degamo family was open to suspects being placed under the government's witness protection program (WPP), to aid the investigation on the case.

[32] Justice Secretary Jesus Crispin Remulla also disclosed that they retrieved a video of the suspects discussing the planning of the assassination.

[64] Arnolfo Teves Jr. was to join via video teleconferencing but senators disproved his participation over uncertainty of whether he would be legally able to testify under oath.

[65] Senator Francis Tolentino pointed out that Teves could be able to testify under oath in future hearings by appearing physically in one of the Philippines' diplomatic missions and a military attaché could enforce a contempt order when needed.

[64] Senator Ronald dela Rosa initially allowed Teves to participate virtually, which was opposed by Janice Degamo, who believed it would be unfair to those would attend physically to give a 'fugitive' such accommodation.

[67] Marcos ordered the formation of a special panel of prosecutors to look into killings in Negros Oriental including Degamo's assassination.

[68] Interior Secretary Benhur Abalos issued a directive calling for the replacement of all police personnel in Negros Oriental following the assassination.

[70] The Region 7 office of the Department of Social Welfare and Development provided ₱513 thousand worth of financial assistance to survivors and relatives of those who died from the attack.

[71] On August 16, 2023, Arnolfo Teves Jr. was unanimously expelled by the House of Representatives due to his abandonment of duty, prolonged absence, and "indecent behavior on social media."