[8][9] On 14 March 2022, the Pashtun National Jirga in Bannu demanded that Kakar's death be investigated by a credible judicial commission headed by Justice Qazi Faez Isa, and the report be made public.
[4] Kakar was also a member of the central council of the Pashtunkhwa National People’s Alliance, which was formed in 1986 when the PNAP (of Mahmood Khan Achakzai) and the Pakhtunkhwa Mazdoor Kisan Party (PMKP, of Sher Ali Bacha) reached an agreement.
[17] In his last Senate speech, the video of which went viral after he lost consciousness due to head injury, Kakar spoke about the threats he had been getting, but the government ignored the warnings regarding the dangers to his life.
[18] He did not regain consciousness, and was later shifted on an air ambulance to the Aga Khan University Hospital in Karachi by the Government of Sindh on the instructions of Pakistan Peoples Party chairman Bilawal Bhutto Zardari, where he died on 21 June because of accumulation of blood in his brain due to the head injury.
[11] However, Pakistani authorities prevented an Afghan government delegation, which included Mohibullah Samim and Sarwar Ahmedzai, from traveling to Muslim Bagh to attend Kakar's funeral.
[21] As his dead body was being transported from Karachi to Quetta and Muslim Bagh, a large number of Baloch and Pashtun people, including political workers, came out to pay their respects and showered flower petals on his vehicle at various places along the road.
[22][4][21][23] Mahmood Khan Achakzai, chairman of the Pashtunkhwa Milli Awami Party, said in his speech at the funeral in Muslim Bagh that he had strong evidence that Kakar was murdered.
[24] Absentee funeral prayers were performed for Kakar in many cities and towns of Afghanistan, Pakistan, and other countries, including Quetta, Peshawar, Mingora (Swat), Kabul, Jalalabad, Islamabad, Khushab, Faisalabad, and at several universities in Punjab.
Ehsanullah Ehsan's allegations deeply worried many Pashtun nationalist politicians and activists, who called on the government to conduct a full investigation into the cause of Kakar's death.
"Some local and foreign journalists confirmed that the Facebook account belongs to Ehsanullah Ehsan, a former spokesman for the Pakistani Taliban and Jamaat-ul-Ahrar," Said Alam told Deutsche Welle.
[28] On the other hand, the ruling political party, Pakistan Tehreek-e-Insaf (PTI), said it was "regrettable and shameful" that the Pashtun nationalists took the remarks of a former Taliban spokesman seriously and did not trust Pakistani institutions.
Mohammed Iqbal Khan Afridi, a PTI leader and member of the National Assembly, said "the death of Usman Kakar seems natural," and that "those who make false accusations against the Pakistani military should be severely punished.
[7][5][29][30][31] Dr Summaiya Syed, additional police surgeon at the Jinnah Postgraduate Medical Centre in Karachi, said, "the alleged head injury could not be commented upon because of the surgical procedures carried out during life.
On the other hand, Balochistan Home Minister Mir Ziaullah Langau told the PMAP and Usman Kakar's family that the government was ready to cooperate with them in the investigation.
[11] Maryam Nawaz, Vice President of the Pakistan Muslim League (N), praised Kakar as "a strong voice of democracy and a front line soldier of the struggle for civilian supremacy."
Hidayat Ullah Khan of the Awami National Party and Manzoor Pashteen and Mohsin Dawar of the Pashtun Tahafuz Movement also voiced their concerns and demanded for a complete investigation.