The cause of his death is not known. Initial report suggest that Mr kilonzo went to sleep and had not woken by 10 a.m. The first people to rush to his home was Mr Chris Musau the chairman of Manzoni Lodge who is also a brother in law of the former minister.
Mr Musau tried to wake Mr Kilonzo up but he did not respond. Sensing danger Mr Musau rushed to his Maanzoni hotel and went straight to a room where the Kenya Medical association were holding a weeklong conference and sought the help of the medics.
A doctor attending the conference told the Sunday Nation at Maanzoni Lodge that one of their colleagues attending the conference was dispatched to the senator’s ranch.
Former president Mwai Kibaki sent a message of condolence to the family and relatives of the late Makueni County senator Mutula Kilonzo.
The former president said that with the death of Senator Mutula Kilonzo, the country has lost an outstanding leader and resilient politician.
Kibaki pointed out that as a testimony of his commitment to the national good, the late Kilonzo, as the minister for Justice, National Cohesion and Constitutional Affairs, played a pivotal role in the realization of the new constitution.
“Indeed I will forever cherish the time we worked together with Mutula when he was Minister for Justice, National Cohesion and Constitutional Affairs in the realization of the new constitution” Kibaki said.
Consoling the bereaved family, the former President prayed to God to give them courage to bear the loss.
Former deputy prime minister Musalia Mudavadi sent his condolences to the family saying senator Mutula was a consummate lawyer who was revered at the bar for his forceful legal arguments and mentoring of young legal minds.
"In the Senate, Kilonzo would have been at hand to breath fresh air on the country’s commitment in implementing devolution," said Mudavadi.
This comes as a shock to many Kenyans just a few weeks ago when he prominently featured in Cord's election petition at the Supreme Court. Previously, Kilonzo had served in former president Mwai Kibaki's cabinet as the minister for justice and constitutional affairs, and then minister for education. Mutula had served Kenya in various other capacities since he joined politics.
Educated at Mbooni Primary School and Machakos High School before joining University of Dar es Salaam in 1969 graduating with a First Class Honors’ Degree in Law.
He had also served as a minister for Nairobi Metropolitan Development until being appointed in the docket of Justice and Constitutional affairs on May 4, 2009 and later on minister for Education.
He previously served as private attorney to now retired President Moi. Mutula Kilonzo made his debut in parliament as a nominated M.P for K.A.N.U in January, 2003.