The Delhi Police on Saturday arrested one juvenile for killing a post office security guard in Delhi's Rohini Sector 7.
According to the police, "60-year-old Sushil Kumar was brutally assassinated. The police have also recovered a part of the broken bat, which was used as a weapon for murder. Two hard disks, one mobile and Rs. 20,000 were stolen from the site."
Media reports say, Sushil Kumar's retirement was to be held in February.
A case has been registered and further investigations are on.