WARNING: UPSETTING CONTENT

A 15-YEAR-OLD boy was supposed to spend a hospital visit last February learning to take care of his month-old son, but yesterday in a Perth court the teenager admitted to killing his baby during that visit.

The teenager, now 16, appeared in Perth Children’s Court yesterday pleading guilty to the unlawful killing of his baby boy.

For the first time, the court heard disturbing details of the baby’s death.

The 15-year-old was left alone with the baby at Bunbury hospital for only 10 minutes while the baby’s mother was outside.

When the 16-year-old mother returned, the baby was limp, pale and not breathing, Nine News reported.

While the teenager initially told police he had “bumped” the infant, saying he heard a “pop” as the child heads hit door frame, state prosecutor Bruno Fiannaca told the court the explanation was found to be “implausible”.

The child’s injuries were found to be “consistent with blunt force trauma”, possibly by being stomped on as he lay on his side on the ground.

A surgeon who examined the baby said he had the worst head and brain injuries she had ever seen.

The man was initially charged with serious assault, but the charge was upgraded after the child died ten days later, News Corp reports.

At the time of the baby’s death, the teenage mother took to social media to express her grief after the baby boy died in her arms.

“Omg what do I do sitinq here so lost missing my son rip mummys boy love you to the moon nd bak,” (sic) she wrote.

“You Went In My Arms I loved Yhu So Much.” (sic)

Outside court yesterday, the baby’s mother told the West Australian: “There is not a day that goes by that I don’t think of him”.

The young man cried in the dock while his case was read in court.

He was remanded in custody and will be sentenced next month.