In mitigation, Lekirimpoto, pleaded for leniency because he was the sole breadwinner.
The comes in after they learn they're half-siblings and stay in the relationship anyway.
His daughter too denied there was any sexual relationship between them.
The 38-member Colt clan were forced to live in squalor in a sickening story of incest, neglect, and paedophilia.
Irene Waruru, a businesswoman based in Kiambu, claims that one of her neighbours slept with his biological daughter for years without being questioned.
Then there was the case of Samuel Kamotho, a Thika-based engineer who was almost lynched by his neighbours after his wife, Virginia Wangari, accused him of sleeping with his 18-year-old daughter, Lucy Nyawira.