Murder of Jenjira Ployangunsri

He placed the flayed skull, limbs and bones in bin bags, and drove to the Bang Pakong River in Chachoengsao Province, east of Bangkok, where he threw them into the water.

The following day, he visited the house of a friend on Charansanitwong Road, in the western Thonburi side of Bangkok, where a witness later reported he spent some time car-washing.

[1][2] The police eventually tracked down the witnesses who reported on Serm's suspicious activities at his friend's house and his Chon Buri home, and brought him into custody on 5 March.

[4] He confessed to killing Jenjira, claiming to have strangled her in her car at the mall in a fit of jealousy, and then, in fear of being caught, checked in to a love motel where he dismembered and disposed of her body through the toilet.

However, the investigation team was informed by the Institute of Forensic Medicine (IFM) of two unidentified human skulls earlier found in the river and reported to the local police.

The gun was recovered, and investigations of the apartment's septic tank revealed numerous pieces of human flesh, which were found to match Jenjira's DNA.

A lot of public attention fell on forensic pathologist Porntip Rojanasunan, whose riotous hairstyle became a sensation amidst the intense media coverage of the investigation.

[6] He was convicted of premeditated murder, unnecessarily firing a gun in an urban area, destruction of a corpse, theft of property, and possessing a firearm licensed to another.

He completed a law degree from Sukhothai Thammathirat Open University while in prison, but his application to the Thai Bar Association was rejected due to his conviction.

[9] The case attracted intense public interest and media coverage, and the gruesome nature of the crime generated much discussion and speculation over Serm's motives and mental status.

Professionals involved in the investigation including Porntip and police inspector Sakchai Suwannukun noted in later interviews that they found it plausible that Serm's dismembering of the body, while shocking to the public, was motivated purely as an attempt to conceal evidence.

Headline item from Thairath newspaper, crying, "Exposed! Cold-blooded student murder, butchering of body"
The Supreme Court judgement of the case