A KSU member was arrested on Saturday for his alleged involvement in the Ichamati murder cases. He has been identified as Ostarnic Marbaniang. The arrest has been confirmed by EKH SP. On March 27, two persons were allegedly beaten to death by miscreants at Ichamati. They have been identified as (L) Esan Singh and (L) Sujit Dutta. Both are labourers working in limestone quarries. Their bodies were found at Ichamati and Dalda respectively.