The vigil was held at the Pavillion at 6 p.m. Hundreds of students showed up and stood in the dark, holding candles and silently bowing their heads.
The students placed lit candles on the ground, arranging them to spell her name. Another video showed them standing on either side of the lit candles and singing.
Rita Waeni's remains were discovered in plastic bags at a rental apartment in Roysambu on January 14. Her head was missing, along with her phone and other personal belongings.
On Sunday, the head was found in Kiambaa Dam, Kiambu County. The DCI has also taken over the case. They will conduct a forensic examination of the head.
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Two Nigerian nationals arrested in connection with Waeni's murder were arraigned on Monday after being apprehended in a rented flat in Ndenderu, Kiambu county.
During the arrest, Kasarani DCI officers seized a hatchet and a butcher's knife, as well as six mobile phones, an assortment of SIM cards, three laptop computers, and a Kenyan identity card.
Police said investigations revealed that the two were in Kenya illegally.
Condolences to family and friends; may her soul rest in peace.