The 58-year-old was farewelled a week ago after he was allegedly killed by a 15-year-old boy known to him while about 30 teenagers were celebrating the end of the school term at the Oriel Road property in Clayfield on June 26.
Josephson was the co-founder of the multimillion-dollar youth clothing chain Universal Store and owned several cafes and stores on the Sunshine Coast.
The management of one of his businesses, Cafe Doonan, announced his family has permanently closed Cafe Noosa, Noosa General Store and Eumundi Sourdough Co last week.
“His beautiful family has been forced to make a tough call, so it is with heavy hearts that we announce the closure of Cafe Noosa, Noosa General Store and Eumundi Sourdough Co, effective since Monday 14th July,” Cafe Doonan said in a statement yesterday.
“We know this comes as quite a shock, and we’re sorry for any inconvenience caused.
“Cafe Doonan will remain open. We will all do our absolute best to honour Greg’s dream.”
Josephson was found dead at the mansion about 8.15pm on June 26.
Police arrested a 15-year-old boy on a street nearby and charged him with murder. He remains before the court.
The boy is known to Josephson and had made the call to triple zero. 
Cafe Doonan paid tribute to Josephson, saying he was a “wonderful owner” and would be “missed dearly by all staff”.
“Words can do this loss no justice. Greg was on his way to create an amazing hub of businesses, with a passion and drive that was unmatched,” Cafe Doonan said.
“He loved being a part of this community and had an impressive vision for the four locations.
“He was a kind and gentle man who is missed dearly by all staff. We are deeply saddened by this loss.”
Universal Store released a statement shortly after news of his death.
“We wanted to share the sad news that Greg Josephson, who founded our company and played a significant role until 2018, has recently passed away,” the company said.
“Our sincere thoughts and condolences are with his family at this very sad time.”
Josephson founded Universal Store with his brother Michael in 1999 and acted as company director until it was sold to private equity investors in 2018.
The company was then floated on the ASX in 2020.
Since then, he had acted as the chief executive of Josephson Holdings Pty Ltd.
