After his murder at Ngong Forest and the arrival his body at the City Mortuary days later, the killers of then Nyandarua North MP Josiah Mwangi Kariuki were not done yet.
In revelations made by then (1975) Kisumu Town MP Grace Onyango who was among the leaders who rushed to the morgue after revelations that JM's body was lying there, the plot was to use a spy to smuggle the body out.
She says that the officer, who had been in Parliament, pretended to be a morgue attendant, and even blocked the group from viewing the body, citing strict orders from his bosses.
The then Nakuru Town MP Mark Mwithaga would later in 2012 reveal that the man was in the process of releasing the body to some wailing women, who were ready to leave with it.
He suspected that the body was to be later loaded onto a waiting Peugeot 404 station wagon and driven off, and had a tag on its leg reading "a body of unclaimed Luo gangster".
“As we were watching over the body, some inside and others outside, others behind the mortuary, we discovered a Peugeot 404 Station Wagon with some women mourning and weeping."
"They were seriously weeping. They were preparing to receive the body from the mortuary and drive it away in that vehicle,” he told the Truth, Justice and Reconciliation Commission.
Throughout the time that he had been missing, following his March 2 assassination, President Jomo Kenyatta's government claimed that he was away in Zambia.
A parliamentary select committee led by Elijah Mwangale later found out that JM might have been killed by a jailbird released moments before, possibly for the exact purpose.
The committee found out that a prisoner at Kamiti Prison named Kinyanjui, alias "Mark Twist", had been released on a Sunday night at a magistrate's house and ordered to trail Kariuki.
The select committee also found out that some top state official was behind the assassination plot, and intended to keep it under wraps for as long as possible.
The case has never been resolved, with most suspects having already died.