The accused had murdered the victim, a mentally ill individual, after he was accused of stealing
Sixteen people accused in the murder case of a tribal youth in Attappadi have been arrested & charged with sections of murder
Reports have added that the accused will be produced before a special court on Sunday.
Four people were arrested on Friday.
Earlier, reports of the tribal man's death sent shockwaves across the country.
The deceased, suspected to be mentally unsound, was identified as Madhu, hailing from Kadukumanna settlement of Attappady, one of the largest and backward tribal hamlets in the state.
The shabbily dressed man, who was living in the forest near Mukkali here for some months, used to be seen wandering in the area, police said.
He was beaten up by the local people, who accused him of stealing articles from some shops in the town, and later handed him over to the police yesterday.
Some television channels aired visuals purportedly showing people taking selfies with Madhu with his hands tied up.
Though the police tried to rush him to the nearby Agali government hospital, he vomited, collapsed and died in the jeep itself and was declared by dead by the hospital, police said.
Agali police has registered a case and some persons have been taken into custody, they said.
"They are being interrogated and the arrest will be recorded after verification," a senior police officer told PTI.
Police said the post mortem would be conducted at the Thrissur Medical College hospital later, only after which the exact cause of the death will be known.
However, Madhu's relatives told Malayalam channels that he was suffering from a mental breakdown and was staying away from home for some months.
They also wanted exemplary punishment to the guilty.
The incident was condemned by CM P Vijayan and Congress President Rahul Gandhi
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