Inside the web of lies that led police to Dutch tycoon Tob Cohen's body
What you need to know:
One of the suspects in custody has told police that he had been given a contract to build a small house on top of the tank — to perpetually seal the site.
On August 3, Mr Karanja was advised by Ms Wairimu to switch off his two phones — and “buy mulika mwizi” since detectives were on his trail.
