SARGODHA- The police claimed to have arrested the culprit involved in murder of seven people during a raid here on Thursday. On a tip-off, the police conducted a raid at the office of Irrigation Department during which accused Hamza Awan was arrested. It is to be noted that Hamza Awan had gunned down seven labourers while working in the fields of a local landlord in Bhagtanwala village near Sargodha on Wednesday.