Bradley Robert Edwards has been found guilty beyond reasonable doubt of the wilful murder of Jane Rimmer and Ciara Glennon.
He was found not guilty of the murder of Sarah Spiers - the first woman who went missing in 1996.
Her body has never been found.
Edwards will be remanded in custody until December 23, when he will receive his sentencing.
Mission Australia celebrates 25 years of supporting young people through Mandurah Reconnect program
Mission Australia is celebrating 25 years of its Mandurah Reconnect program which supports young people and families navigate conflict, prevent homelessness and build stronger futures across the Peel region.
'Mad Eagles fan' wins $6 million Lotto prize
A mad Eagles fan has claimed a $6 million Lotto win.
Mandurah woman loses everything in house fire
A woman has lost everything in a house fire in Mandurah.
Gift card scams surge past $1 million prompting urgent warning from Consumer Protection
More than $1 million has been lost in scams involving gift card payments this year, triggering an urgent warning from Consumer Protection
Secret Harbour by-election attracts record 16 candidates
The Secret Harbour by-election has attracted a record 16 candidates.
Major party candidates locked-in for looming Secret Harbour by-election
The major party candidates for the Secret Harbour by-election have been unveiled with the political battle ramping up ahead of polling day on August 29.
Comet Bay Primary to offer full-time kindy from 2027
Comet Bay Primary School will offer free, optional full-time kindergarten in 2027.
North Dandalup crash claims life of driver
Police are calling on witnesses to a fatal crash in North Dandalup at the weekend.
Date set for Mandurah's Town Ward Extraordinary Election
A date has been set for Mandurah's upcoming Extraordinary Election which will see the appointment of a new Town Ward councillor.