A Station House Officer (SHO) was shot dead by his junior constable over a petty issue in here on Tuesday. Constable Naimutllah shot SHO Muhammad Aoz to death after exchanging heated words, according to DPO Chaman. Police sources say that Naimuttlah was angry as his request for leave was turned down by the deceased SHO. On this, he took out his gun and shot the SHO before fleeing. According to the police, they have launched hunt for the suspect.