Sources said police did not take timely action against the callous culprits in spite of having complete information about them.
It has been six days since the murder took place.
Taking notice of the incident, Inspector General Sindh Police AD Khawaja has formed inquiry committee headed by DIG CIA Sultan Khawaja, however no member of the committee has so far met with the victim family.
According to the victim family members, three of the murderers, Arshad, Farrukh and Adeel, are residents of Shah Faisal No3, while other accused Uzair and Fayyaz are residents of Green Town and Gulshan-e-Iqbal respectively.
The victim was an employee at Karachi Stock Exchange. He had had a brawl with his friends over loss of money.
Farhan’s mother claimed that her son’s friends tortured him all the night and filled spices in his wounds.
The victim family members have provided police complete information of the alleged murderers, their pictures and residential addresses.