The body of Sukru Kannayya (28), a tribal of Mettavalasa in Pachipenta mandal, was found in a pool of blood with injuries at Kadumuru where he attended village goddess festival and returning home in the early hours of Wednesday. Police suspected extra marital relationship as the cause for murder and took three suspects – Kondaiah, Punnaiah and Latchaiah of the same village – into custody. SI M. Butchi Raju is investigating.