Her mother Dulcie Hart is frustrated, upset and angry and wants answers as to who is responsible for her daughter’s death.
Ms Hansen, who was 25 when she died and a mother of two toddlers, was found by members of the public on the corner of Apsley Road and Brolga Promenade in Willetton at 12.15am on June 29, 2016.
She was taken to Fiona Stanley Hospital, where she later died.
Get in front of tomorrow's news for FREE
Journalism for the curious Australian across politics, business, culture and opinion.
READ NOWAt that time, Major Crime Squad officers called for witnesses who were in the Willetton area between the hours of 10pm and 12.45am.
Since her daughter’s death, Ms Hart, who lives in Collie, has experienced serious health problems.
“I have been waiting on answers since she passed away.
“I want answers now,” Ms Hart said.
The 54-year-old grandmother survived a heart attack last month and is taking antibiotics to treat a sore on her back.
Just before Christmas last year she became homeless and lost all her possessions including precious photographs and items that belonged to her late daughter.
“I am now living on the streets in Collie. I have nowhere to go,” she said.
Ms Hansen’s aunt Dianne Hart said her niece was a beautiful person and that the family wanted answers about her death.
She said Ms Hansen had great potential and had travelled around Australia on a leadership course to learn about Aboriginal culture.
“We went up to Cairns and down to Melbourne. She really loved it and was waiting to go on the next leadership course to America.”
She said her niece was from Collie and had studied at the town’s Wilson Park Primary School and a Noongar cultural centre.
Ms Hansen is survived by her two young children who are being raised by a relative in Perth.
MORE: Perth Lord Mayor hits out after being found guilty of breaching Local Government Act
MORE: Perth councils holding millions in unclaimed kerb security deposits
MORE: Qantas CEO Alan Joyce gets pie in the face at Perth breakfast event