Two persons, including a retired sub-inspector of Chandigarh Police, were shot dead by unknown assailants in Azad Nagar area of Hisar.
The deceased were identified as Kartar Singh (70) and his relative Balbir Singh (65), a former cop.
According to police, the attackers arrived at Kartar Singh's Azad Nagar residence on a motorcycle. Upon entering, they began firing at him and Balbir Singh who was also present inside. The duo died on the spot, while the assailants managed to escape, police said.
The cause of murder was yet to be ascertained, police said, adding that a case was registered.