Victoria Police are working with a Lalor family who returned home to find their three-month-old staffy ‘Boss’ dead in their backyard.
They are appealing for public assistance with anyone who may have any information, the attack occured on September 30.
Police were told an unknown person gained access to the rear yard of a property in Station Street sometime between 9.30am and 10.30pm.
Once inside the yard, the person moved CCTV cameras before one of the three puppies in the yard sustained fatal injuries.
Local detectives believe the incident was a targeted attack.