A farmhand in Kieni West was on Wednesday night beaten to death by members of the public after he butchered his wife and ate her intestines.
Morris Mutegi, 23, chopped off Caroline Gatwiri's head with a machete in Wendiga village, Nyeri.
Mutegi allegedly cut out Gatwiri's intestines, heart, kidney, ears and tongue and ate them.
According to his employer, Ann Wangechi, he had earlier picked up Gatwiri at the neighbouring Mweiga Township where she had arrived from Meru to visit him.
She was accompanied by their two-year-old child.
Wangechi said she heard commotions and screams from Mutegi's residence, located 300 metres from her house, at around 11pm.
She said she found Mutegi butchering his wife when she went to check on him.
She said her screams alerted her neighbours who rushed to her home but could not get inside because of the tightly fenced compound.
"He was very furious and wild. Nobody could go near him. Despite pleas from our neighbours he refused to spare her," a shaken Wangechi said.
She said Mutegi killed Gatwiri outside his house and dragged her inside where he cut off parts of her body.
"He threatened to kill anybody who would approach him as he was armed with a matchet, a Somali sword and a spear."
Mutegi reportedly forced his young son, who had witnessed the murder, to drink his mother's blood.
The neighbours overpowered him as he was about to set upon his son.
They tied him to a tree and beat him to death.
Mutegi who hails from Gitige village in Muthambi, Meru, has been working in Wendiga since March.
Solomon Mwangi, a neighbour, described him as humble and social.
Nyeri Police boss Kirunya Limbitu said Gatwiri's body was badly mutilated.
The two mutilated bodies were moved to the Nyeri Provincial General Hospital mortuary.
The motive of the killing is yet to be known.