The trial of a former Nakuru Town Member of Parliament and 12 suspected Mungiki sect members begins today.
Mr David Manyara and the others are accused of killing 10 people at Nakuru's Flamingo, Lake View and Mwariki estates on the night of January 4 and 5, last year.
Mr Justice Daniel Musinga will preside over the hearing for two days.
The hearing against had been set for December but was brought forward following a request by the defence and Mr Manyara's family.
They said the former MP had developed complications at the Nakuru GK Prison.
Two suspected Mungiki members charged alongside Mr Manyara have died in custody.
Mr Nderitu Chuma died with a bullet lodged in his thigh, while Mr Peter Mwangi died after complaining of abdominal pains.
Also charged are suspects Jeremiah Muturi, Duncan Chege, John Njenga, John Irungu, Samuel Mwangi, Peter Karanja, Francis Maina, Mr Paul Gathii, M'to Muchiri Mkoloi , Kariuki Mugo, David Karanja and Jeremiah Wanjau.
The Attorney general terminated the case in June, but the suspects were immediately re-arrested and charged afresh.