"Devidas Sinari, the constable committed suicide by hanging himself at Bicholim police lock-up," Superintendent of Police (North) Umesh Gaonkar said.
Devidas along with his elder brother Dattaguru were arrested last night after the mutilated body of Ratan Carol, a local vendor, was recovered from Shapora river yesterday, he said.
The brothers had earlier threatened Carol over a petty matter, Gaonkar said, adding they were booked under sections 302 (murder) and 201 (causing disappearance of evidence or giving false information) of the IPC.