Mr Thornton was desirable wishing him to be legally appointed at his home in Australia, with whom he loved his room.
But despite Victoria in the first state to legalize a voluntary aided death, he did not qualify.
Its disease – multiple system atrophy – is an innovative neurodegenerative disorder. There are no treatments and there is no possibility of restoration but death can take years.
That is where the Victorian laws fall, Mr Thornton explained.
He was unable to find two doctors willing to say with absolute certainty that he would die within 12 months, and in his case he was a condition to go to the legislation.
He switched to Switzerland as a solution to finish his suffering, even though he had no children, his extended family and a faithful circle of friends.
The career firefighters had spent his last day alive with a man he met, Dr Death Australia, Philip Nitschke, who has led an annual campaign on assistant dead laws in Australia.
On their last day, they took the invasive part of the Rhine River nesting through the medieval city of the northwest of Basel, before going to the Alps copier.
In the evening, Troy and Christine's wife came down for a final supper with a lifelong friend who was given him to escort her home safely to her two teenage children.
"Doctors have always told me that you're not dead, you're dead with her. You can live for a long time, but … you're coming to be vegetable, "said Mr Thornton from Basel.
"After a while it's attacking different systems, breathing, swallowing. I'll be able to drown in my own mucus, that's what's happening."
He called his disease as an "animal": one that takes everything away slowly.
"First you can not swim, then you can not run, walk, kick the foot with your children, you can not surf, drive, and eventually take your career. Then you & Do not become vegetables.
"There's a pretty difficult way to get out."
He described everyday as "day Groundhog Day" – filled with intense abdomen, double vision and void.
"I've had enough, but unfortunately, the laws, while they are a huge step to the correct address, do not help me. They are discounting a lot of people."
He urged Australian voters to tell their politicians what they want when it comes to end of life choices.
"When our life is, we should have control. We should be able to choose if we are of firm thinking. That is what I would like to say."