Kibunguchy passed away on Tuesday, December 23, leaving his family, friends, and the wider community in shock and mourning.
Speaking to the press at his home in Kakamega County, family members said they were troubled by events that unfolded in the days leading up to his death and felt that key questions remained unanswered.
According to the family, Kibunguchy fell ill suddenly and was rushed for medical attention.
They explained that doctors who attended to him while he was still alive shared preliminary findings that pointed to possible food poisoning.
Based on this medical assessment, the family believes that his death may not have been from natural causes, prompting them to demand a thorough probe.
Family spokespersons said they were not making accusations against anyone but were simply seeking clarity and truth.
They noted that an open and transparent investigation would help them understand what happened and bring peace to a grieving family.
They added that uncovering the real cause of death would also prevent similar incidents from happening to others.
The family urged relevant authorities to act quickly and carry out independent investigations, including toxicology tests and a full postmortem examination.
They stressed that such steps were necessary to confirm or rule out food poisoning as the cause of death.
According to them, delays or silence would only deepen suspicion and pain among relatives and the public.