On a bigger picture, the man like many of his ilk in the urban slums are filling government's failure. Slums like Githurai, Kayole have no government hospital. None. For such impunity gets into their heads and depravement. Well, well working as a doctor, nurse or a police officer in places like Kenya makes you depraved one way or another.
Only utility is a police post and a chiefs camp to collect bribes from bars and wines and spirits despite having dozens thousands population.