According to the interrogation report availed by ARY, the culprit killed the wardens on an issue of china-cutting. The target killer also confessed to killing three real estate agents and illegal seizure of land.
The culprit revealed that he got Rs35, 000 after killing and mobile phones worth Rs17, 500 before killing.
SSP Naved Khwaja said the arrested culprit belonged to military wing of a political party. He said raids were being carried out to arrest his accomplices.
A security guard of Nasreen Jalil was gunned down on April 04.
SSP Central Muqadas Haider had said the attackers who came on motorbikes sprayed the police mobile with bullets near Nagan Chowrangi, killing Abid, who also served as a city warden, and his friend Atiq.