The workers were constructing a toilet at a school next to the temple in Faridpur’s Madhukhali Upazila
The arrestee Sheikh Russell, 21, work in Icon Security Service in Gulshan.
Russell has been arrested from Sonadanga bus stand in Khulna on Tuesday night, said Lt Col Sarwar Bin Kashem, head of Rapid Action Battalion or RAB-1.
Russell used to work with Nurunnabi in Gendab Security Service before joining Icon Security Service, Col Kashem told bdnews24.com.
“They had a dispute which is the motive of the murder. Russell has confessed to his involvement in the murder during primary interrogation.”
Police found Nurunnabi dead in an EBL ATM booth beside the Cantonment Post Office on Monday.
Police said the murder took place in the early hours of Monday.