Maina Njenga guy failed to read the signs of times early enough to realise the future inherent danger of staying too long in the organization...
probably he thought the organisation was undismantleable and strong enough to withstand any internal aggression by the law enforcers (after all most of these policemen were members)and the fallacy was based on the number of individuals in the outfit...
his colleague in command, Ndura Waruingi, was clever enough to realise what was in store for them in future and opted out. as for maina the money was becoming sweeter and sweeter and the greed directed him towards the "grain with the string"...
there is no doubt now he is a haunted man...haunted by his past and the only way he could save his hide is getting out of Kenya...no other way, not even going back to jail..
...besides, the presence of a safe alone does not signify that there is money inside...