Hmm there are quite a few unsolved strangulation murders from Geelong and Ballarat areas dating back to the 90’s.
8 Victorian cold case deaths draw $1 million rewards for information - ABC News (Australian Broadcasting Corporation)
Nina Caroline Nicholson Sep 91 - Clunes (bashed found at home)
Annette Steward Mar 92 - Geelong (strangled found at home)
Claire Morrison Dec 93 - Bells Beach (Strangled found at beach)
Tracey Howard Nov 98 - Ballarat (strangled at home dumped elsewhere)
Belinda Williams 99 - Buninyong (strangled at home dumped elsewhere)
I am kind of obsessed with serial killers. I know in some of the above the police indicated they have viable suspects but you constantly see cases where serial murderers have gone unnoticed for decades i.e. like The Golden State Killer.
I know so called ‘stranger killings’ are hardest to solve. If police have no viable suspect logically they’ll look at a victims life and focus on say - the ex boyfriend, the estranged husband, the guy stalking her at work, the last guy to see her.
What if the killer is a neighbour - they know the deceased but not well. They can watch their movements. Spy on them. They would not necessarily be considered a suspect. They may not even be on police radar, or have a record. And if they do it might be for unrelated crimes like burglary or car theft.
In the case of Nina Nicholson there was mention a snowdropper was targeting her.
https://www.google.com.au/amp/s/www.dailymail.co.uk/news/article-3783090/amp/Police-renew-hunt-killer-Victorian-nurse-Nina-Nicholson-offer-1million-reward-25th-anniversary-brutal-murder.html
One imagines the police will check Chalmers previous addresses and areas he’s lived and do their due diligence.
I understand he’s moved about a bit.
IMO guys like this don’t just stop killing.