According to the police, the deceased, head constable Jaffar Hussain, 35, lived in a house adjacent to the police station.
Eye-witnesses claimed that he had been playing cards with his friends in front of a shop at Faiza Avenue, when four young men riding a motorcycle stopped next to Hussain and his friends. One of these men approached them, at which, Hussain, suspicious of their intentions, took out his pistol and opened fire, injuring one of the suspects.
Meanwhile, another suspect returned fire at Hussain, who sustained a bullet wound to his chest, killing him on the spot.
The deceased was taken to Abbasi Shaheed Hospital for medico-legal formalities.
Hospitals were informed of the incident and asked to be on the lookout for the injured suspect in case he came in for treatment.
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The following morning, a man, Rehmat, brought his 20-year-old son, Rehan, to Jinnah Postgraduate Medical Centre for treatment. Rehmat claimed that Rehan had been injured in a robbery attempt near Old Sabzi Mandi.
The Saddar police informed the Sir Syed Town police of Rehan's arrival, upon which the latter brought two friends of the deceased who had witnessed the incident. They identified Rehan as one of the suspects and he was promptly taken into custody.
After initially denying his involvement, Rehan admitted to the crime. He also revealed that he and his accomplices had been involved in several incidents of street crime prior to this.
The police are carrying out further investigations.
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