The body was discovered when a passersby found it being bitten by a water monitor (a large carnivorous lizard)
According to Daily News, the stepfather, a 27-year old factory worker said he did it just because the boy would not stop crying and defecated and urinated.
All this happened while the boy's mother said she was cowering in fear in the bedroom.
When the stepfather told her that her son was dead they reportedly wrapped him in a blanket and traveled some way from their house and dumped him by the side of the road.
A member of the public found the body on Thursday, November 17th, being bitten by a water monitor amid a pile of clothes between kilometer markers 19 and 20 on the Sena - Ayuthaya Road.
During interrogation, Tong, who had met the boy's mother "Phee" - who had two children from a previous relationship told police that he couldn't stand the three year old's loud crying and lack of bowel control.
So on Wednesday he attacked him with a clothes hanger until he was knocked out. Then he drowned him by forcing water down his nose in the toilet.
Many neighbors who had heard about the crime came out to shout obscenities at him as he was escorted by uniformed and plain clothes Sena police. Police are still investigating to determine whether to prosecute the mother.
Phee told the police that Tong often hit her son.
On the day of the murder she had heard him beating her son and had cowered in the bedroom in fear not daring to intervene.
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