Police in Tharaka Nithi County are set to charge two brothers accused of beating their step-nephew, Edwin Murithi, 17, to death in Mariene village in Tharaka Constituency on the night of December 31, 2023. Samuel Muriuki, a second-year student at Kirinyaga University, and Kelvin Njeru, a graduate of Kenya Medical Training College, were brought before the Marimanti Magistrates Court on Monday after being found mentally fit to face murder charges.