Ann Wambui Wanyoro was arraigned before Kiambu Principal Magistrate Catherine Oluoch by serious crime unit officers from CID headquarters, led by Maxwell Otieno, who sought 14 days to hold the suspect at Muthaiga Police Station for further questioning.
In a sworn affidavit, Mr Otieno said they believe she has crucial information concerning the murder of the family.
Ms Wanyoro is said to be a close family friend to lawyer Paul Muhiu Magu and was consistently in communication with him throughout the period before and during the murder incidents.
The suspect was arrested on Monday. Between November 16 and 19, the suspect allegedly stayed at Magu’s residence and performed what a house help described as cultic rituals.
“Even after the murder of the wife, the suspect spent time together with the deceased and visited various places together,” Otieno said.
On November 23, Magu’s wife, Lydia Wangui, allegedly went missing and was later found murdered and her body dumped in a thicket near Paradise Lost on Kiambu Road. Some of her body parts were partially burned.
The following day, Magu reportedly left his residence at about 10am in a family car, registration number KAT 177M, and in the company of his three children; Tiffany Wambui (6), Ryan Muhiu (8) and Allan Muhiu (9).
At around 2pm, he allegedly returned home without the three children and later left for his rural home in Kiganjo in Thika.
The following day, he was involved in a fatal accident at Ngoliba on the Thika-Garissa highway in what is suspected to be a suicide crash.
On December 1, one of the three missing children, Tiffany, was found murdered with her body badly mutilated and dumped in a coffee plantation in Ruiru.
Ruiru OCPD Isaac Thuranira said the police found Tiffany’s decomposing body had a deep cut on the neck.
The fate of the other two children is still unknown.
The affidavit reads that under unclear circumstances, Magu had intended to transfer ownership of some of his properties to the suspect in a will deposited with John Odhiambo Achola advocates.