On a hot afternoon on February 7, 2008 at around 5pm, Simon Ngomoro and Marko Ebonyo were walking home along a village path in Maili Tano, Isiolo County.
The two were quarrelling as they walked and when they met up with their childhood friends Peter Emuria and John Longeritoe there were no pleasantries exchanged as Ngomoro immediately lunged for the knife which Emuria wore on his waist.