An evil dad murdered his 13-day-old son by shaking him to death and tried to pin the blame on his own toddler.
Despicable Michael Anthony Herkal, 33, from Minneapolis, US, carried out the evil attack on the defenceless tot after he had an argument with his girlfriend.
The child killer spent 80 minutes searching Google for "someone threw baby on the floor", "baby's butt is blue [spanking]" and "baby breathing hard" before calling an ambulance.
When paramedics arrived in August last year he said his older son, who was two at the time, had pulled baby Anthony off the sofa and injured him, Twin Cities Pioneer Press reports.
When he was questioned by officials he changed his story and claimed the newborn had fallen onto a coffee table while he was changing him.
Anthony died two days later in hospital.
Twisted Herkal admitted to slapping and shaking Anthony which fractured the baby's skull, leading to a bleed on the brain.
On Thursday he was jailed for 24 years after he pleaded guilty to murder in the second degree.
Court records show Herkal also had a lengthy history of domestic abuse against the child's mum.
He breached a protection order she took out against him in 2016 and 2017 four times - for which he received just four months in prison.
