Zachariah Wanjohi before Principal Magistrate Vincent Adet on June 5, 2025 [Kipsang Joseph/Standard] When 23-year-old Ann Waithera vanished on the afternoon of May 21, 2025, her husband Zacharia Wanjohi was the first to raise the alarm. But what began as a frantic search soon spiralled into a chilling investigation, one that would turn the husband into the main suspect in a murder that has gripped Nakuru. Waithera, an M-Pesa agent operating within Nakuru City, left her kiosk around 1pm to deposit Sh330,000 at a the Kenya Commercial Bank branch, and was never seen alive again. Curiously, detectives say that just…