Anne Waithera, her son Joseph Maina, her sister Ruth Wanjiru and three other distant relatives were found guilty of killing David Macharia.
- Justice Florence Muchemi sentenced the six to die in 2014.
Three appellant judges described the killing of Mr Macharia as “cold-hearted and chilling”.
The Court of Appeal has turned down an appeal by a woman and her five relatives who were sentenced to death for killing her husband in 2004.
Anne Waithera, her son Joseph Maina, her sister Ruth Wanjiru and three other distant relatives were sentenced to die in 2014 for murdering her husband David Macharia for marrying a second wife and over greed for property.
Justice Florence Muchemi found the six guilty of murder.
'FALL OF HUMANITY'
While upholding the death sentence on Tuesday, three appellant judges described the killing of Mr Macharia as “cold-hearted and chilling”.
Judges Philip Waki, Roselyn Nambuye and Patrick Kiage said in their ruling that unless courts stand firmly against such offences, they will be contributing to the fall of humanity.
They added: “When marriage and family become a mortal peril for spouses, and children kill their parents without blinking, something of our humanity is lost and the law must be deployed and enforced to express our collective horror, revulsion and outrage,”