
Pol Col Athorn Chinthong, commander of the Lamlukka police station, said Jirasak Kongthong, 26, was arrested at a rented house in the Klong Hok area in Tambon Bueng Khamproy in Pathum Thani’s Lamlukka district at 11:30pm on Thursday.
Jirasak fled his house in Lamlukka after the injured toddler was rushed to the district hospital at 11pm on Wednesday and died of internal injuries shortly after.
Doctors said the boy was beaten and his internal organs were badly damaged.
The 33-year-old mother, whose name is withheld, told police she returned home at 10 pm Wednesday to find her son lying still under a blanket. She rushed him to hospital after she failed to wake him while her husband fled.
Jirasak claimed that he kicked the boy only once after he cried intensely.