Melbourne shooter acted like a 'vigilante'

A 90-year-old man shot an associate over a dispute about payment to clear rubbish from his worksite. (AAP)

A 90-year-old Melbourne man was acting like a "vigilante" when he shot an associate over a rubbish clearing dispute, a County Court judge says.

Paolo Mannici hired the 59-year-old victim to clear his Ravenhall worksite in 2020, paying him an initial deposit of $15,000 with $12,500 still owing.