The moves come after 25 cats disappeared from the centre of the town and the Lillaz area between June and the end of July.
The bodies of two of the cats were found in plastic bags while the rest have simply vanished, including one whose GPS collar was found on a lawn.
AIDAA said the 1000-euro reward would be paid to “whoever helps to identify and definitively condemn the person responsible for these criminal acts by reporting the crime to the police”.
It said it had also hired a profiler to provide a psychological profile of the cat killer.
ANSA