Our Staff reporter TOBA TEK SINGH - A youth killed his step-mother and brother and injured his father and another brother critically here in Village Chak 380/JB late the other night. Accused Tariq is the son of Abdul Sattar from his first wife. It has been learnt that the incident took place over dispute him and his step-mother and her sons over property. The accused attacked and shot dead his step-mother Rukhsana Bibi and his step-brother M Danish on the spot while seriously wounded to his father Abdul Sattar and his another step brother namely M Zaki. Both were shifted by Rescue-1122 to DHQ Hospital from where doctors referred Abdul Sattar to Allied Hospital Faisalabad in critical condition. The Saddar Police have reportedly arrested the accused.