A General Service Unit (GSU) officer guarding State House, Nairobi, was killed on Monday morning by a 56-year-old man armed with a spear. The assailant, who claimed he was "sent by satan," attacked the officer at Gate D before being subdued and arrested.

• The incident occurred around 11 am while officers conducted routine vehicle checks.
• The assailant hid a spear in a sack, posing as a street dweller, and speared the officer in the chest.
• The officer was pronounced dead at Kenyatta National Hospital due to significant blood loss.
• President William Ruto was inside State House preparing to leave for an engagement in Konza City, Machakos County, prompting heightened security.
• Detectives from multiple security agencies, including DCI Kilimani, are investigating the motive, including the suspect's mental state and potential connections.