Wantirna mother of two, Emily Bartley, 27, was on her way home from work at an aged care facility nearby when she rushed to the aid of the motorcyclist. Police believe Troy Swinden, 37, was speeding when he hit an Audi at the intersection of Boronia Road and Amesbury Avenue in Wantirna, just after 10pm on Monday. She was hit by a Honda Prelude on the poorly lit road and killed just after 10pm. Investigators believe it may have been very difficult for the Honda driver to have seen her on the road before it was too late. Mr Swinden had two daughters and was living with his mother at the time of his death.

His Facebook profile has multiple photos of his motorbike and cars, with one post showing an image of a motorbike with the words: "I don't ride a bike to add days to my life, I ride a bike to add life to my days." Police said he had been found with drugs on him and was known to police. "We also found some evidence of drugs on his person," Acting Inspector McArthur said on Tuesday. "We found some white powder and an amount of cash on him." Emily Bartley's actions on the night she died have been described as 'heroic'. Speaking bluntly about the tragedy on Thursday morning, roads minister Luke Donnellan said the tragic double fatality was the result of one man’s "dickhead behaviour".

"The behaviour was just a sign of utter madness [to] put it mildly - that someone would be speeding like this and their behaviour ended in the loss of their life and tragically the loss of life for this mother who was kind enough to stop," he said. Troy Swinden had numerous photos of his motorbike on his Facebook page. "I just feel so much for this family more than anything else. The behaviour of the individual involved was disgraceful. The behaviour of the mother was in such a stark contrast - the kindness and the love for other people that that mother showed and sadly she lost her life which is just tragic.' Mr Donnellan said it was up to the courts to decide whether someone should be bailed and allowed on the roads. "That was just out and out dickhead behaviour … and now tragically his behaviour has resulted in the loss of a mother," he said.

Ms Bartley's family have remembered her as a loving wife and devoted mother. "We are truly devastated to have lost our beautiful Emily," her family said in a statement on Wednesday.

"Emily was a loving wife and devoted mother to her son aged five and daughter aged seven.

She was a genuinely caring person right down to her line of work where she cared for dementia patients." Correction: An earlier version of this story said Troy Swinden had been injured in a previous motorcycle crash and had to have his leg amputated. It also said he was living in Boronia. Those statements were incorrect. Police could not confirm whether Mr Swinden was facing further court appearances for dangerous driving. with Garreth Hanley