
Somchai was shot dead by his subordinate Pol Snr Sgt-Major Chinkrit Putthiprapat on December 15.
Chinkrit, who also shot dead Pol Lieutenant Banyat Somha, who at the time was in Somchai’s office, was killed as he tried to flee. The motive of murder was suspected to be Somchai’s order to set up a fact-finding panel to investigate a rape allegation filed against Chinkrit by a Laotian woman.
While attending Somchai’s bathing rites at Wat Pa Pradu on Tuesday evening, Thanet confirmed that an investigation would be conducted into both the rape allegation and Chinkrit’s shooting of the two officers. Police will also investigate the extrajudicial killing of Chinkrit, he added.