Boniface Kariuki, a trader who was shot by police during clashes with protesters on Tuesday, is on life support, surgeons who operated on him have said.
Violent clashes erupted in Nairobi on Tuesday after protesters demanding an end to police brutality were attacked by a large gang of motorbike-riding "goons" and police officers.
The clashes added to tensions in Kenya, already on edge as it marks a year since massive protests over the economy.
Anger has focused on the incident in which an unarmed man who was selling face masks was shot point-blank in the head by a police officer.
