Three teenage boys have been charged with murder over the bashing death of Mandurah man Tauri Litchfield.
A 15-year-old from Mandurah, a 14-year-old from Leda and a 14-year-old from Thornlie have all been charged with murder and will appear in the Perth Children's Court on Thursday.
Several juveniles were taken into custody on Wednesday after major crime squad detectives searched a number of homes in the Mandurah area as part of the ongoing investigation into the death of Mr Litchfield, 28, who was found in a car parkon March 17.
Channel Seven reporter Grant Taylor told 6PR radio on Wednesday that five or six young males had been questioned.
Police said on Thursday the other people taken into custody were released, however investigations were continuing into whether anyone else may have been involved.
Mr Litchfield was bashed in a car park at a business premises on Pinjarra Road, near the intersection of George Street about 7.15pm on March 17 and later died in hospital.
Anyone with information they believe could assist this investigation is asked to call Crime Stoppers on 1800 333 000, and callers can remain anonymous.
Mr Litchfield, who worked as a sailmaker in Mandurah, was passionate about water sports and had dreams of starting a surf or wakeboarding school.
His family are planning to start a trust fund in his honour to teach water sports to children.
Mr Litchfield's partner of three years, Lisa Emes said the program would spread an anti-violence message.
"If young people find an outlet to let off steam, that can be a real saviour," Ms Emes said.
"If the people involved in Tauri's death had had an outlet, who knows, maybe this senseless violence wouldn't have happened."
Ms Emes, a land development company worker from Britain, and Mr Litchfield, from Gippsland, Victoria, moved to Western Australia about 15 months ago with big plans for their new home.
She said Mr Litchfield had the energy and positivity to "befriend everyone he met".
"It sounds really cliché but he was the epitome of friendly," she said.
"He talked to strangers like they were his best mate."
- with Daniela Cooper