NAIROBI, Kenya — A chilling security breach near Kenya’s presidential office has raised alarms after a man allegedly stabbed a guard to death on Monday. The suspect, Kithuka Kimunyi, reportedly approached the State House main gate disguised as a homeless person, armed with a bow and arrow. After fatally shooting the guard, Ramadhan Hamisi Matanka, Kimunyi was apprehended at the scene. The guard succumbed to his injuries at a nearby hospital.