In February 2010, a G4S security vehicle was transiting Sh330 million from Mombasa to Nairobi but the occupants were allegedly ambushed by a gang along the way and the money was stolen.
A few weeks later, four suspects Jacob Mutuku Musau, Amos Mutuku Musyoka, Sylvester Mbuli Mbuvi and Patrick Karanja Njau were found in possession of Sh40 million which was believed to be part of the stolen money.