This is a departure from the initial belief that Mr Gitau could have committed suicide by jumping into a river.
Mr Kanda said Mr Gitau’s three wives, brother, driver and business manager have since been called to record statements.
The Nation has also found out that there had been frosty relations between his first wife and the other two.
The businessman has 11 children aged between three and 19 years.
The search for Julius Gitau Wanyoike — the prominent Thika millionaire businessman who vanished in broad daylight on September 21 — now enters day 15 with the puzzle of his whereabouts getting more complex.
According to Mr John Kanda, who is the lead detective in the case, six statements have since been recorded “and we are now training our eyes on two possibilities — that Mr Gitau was kidnapped or he staged his own disappearance”.