Police in Gatanga Murang'a are holding in custody a 23-year-old man who is believed to have killed his four-month-old son Tuesday morning.
Mark Njuguna is said to have dropped the baby on the concrete floor headfirst killing him instantly.
According to Njuguna's father Samuel Kigumo, he was woken up by the baby's mother Mary Muthoni at around 2:45 am after the incident happened.
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Kiguro said Muthoni managed to escape from the house after her husband threatened to kill her if she raised an alarm to alert neighbours.
The two are believed to have picked a quarrel after the man questioned whether he is the biological father of the boy.
"My daughter-in-law came running to my house telling me that her husband has killed their baby boy," he said.
"We are still in shock because we don't understand why he would do such a heinous act and kill an innocent child," added Kiguro.
The body was taken to General Kago mortuary in Thika awaiting postmortem as police delve deeper into the matter.
The incident comes barely two weeks after a middle-aged woman killed her two daughters by poisoning them and later hanged herself.
