Unfortunately you probably wouldn't be wise to deeply believe that... To keep in line with WS rules I won't mention other cases but I've seen my share over the years, I know the area well and it's surrounds, grew up in country Vic. A lot of stuff happens, a lot of stuff that if your not exposed to/catch wind of or not actively paying attention and following the threads you won't have any clue it's happening in your own backyard. Jmo.
Not saying the suggested theory has any substance though, just giving my thoughts and experience on the country town comment.
It's a very large country town and densely populated around the suburbs of the cbd, holding about 1/10th of Victoria's rural population, very close to Melbourne which holds 5/6th of Victoria's population, stuff like the aforementioned theory happens in Melbourne, happens in the sticks, and happens in large regional cities. Doesn't have to be a "professional" hit person, non professional clumsy hits have a history in this country.