In a big breakthrough, the Assam police have arrested the main accused in the mob attack on two men in Assam's Karbi Anglong district. Two men were brutally beaten to death after rumours that they were child-lifters. The accused identified as Alphajoz Timung, had called up locals to stop the car, claiming there were two men inside, who were child-lifters said the police. He was arrested on Tuesday night from Belughat area in Karbi Anglong.