BANGKOK, March 8 -- Relatives of Pol Col Thitisan "Joe Ferrari" Utthanaphon have expressed doubts over his reported suicide in prison, calling for a thorough post-mortem examination to determine the true cause of death.

Thitisan, convicted of torturing and killing a drug suspect in 2021, was found hanged in his cell at Klong Prem Central Prison in Bangkok on Friday night, according to a report published in Thailand's The Nation today.

The Department of Corrections confirmed in a statement on Saturday that prison officials were alerted to an inmate's death at 8.50pm.

The prisoner was discovered sitting against his cell door with bruised fingers and no pulse, with a towel tied around his neck and secured to the door.

Identified as Thiti...