For two weeks now, Boniface Kariuki, the hawker who was shot in the head at close range by a police officer in Nairobi, has been lying in critical condition at Kenyatta National Hospital.

Kariuki, 22, was rushed to the facility on June 17 after being shot along Tom Mboya Street during a demonstration calling for the resignation of Deputy Inspector General Eliud Lagat.

While surgeons who conducted the first head surgery on the patient reported that they had removed the bullet, some fragments of the ammunition lodged in Kariuki's brain have presented a serious challenge for the medical team.

This development was disclosed on Friday, as Kariuki underwent a third surgery, while doctors continued their efforts to save his life in the Intensive Care Unit (ICU). "He underwent surgery on Friday.