Two British backpackers died after a psychotic Frenchman knifed them at a north Queensland hostel during a drug-fuelled attack, a coronial investigation has found.
Smail Ayad stabbed fruit pickers Mia Mishka Annie Ayliffe-Chung, 20, and Thomas Leslie Jackson, 30, in the head and chest at a hostel near Townsville in August 2016.
"Something will happen tonight. I feel like everybody wants bad things for me like something will happen to me," Ayad, also a backpacker, warned a fellow French traveller before his frenzied attack.
Other guests had noticed the then 29-year-old's behaviour and character change about the time Ms Ayliffe-Chung arrived at the hostel.
She later complained about Ayad's unwanted advances after he became sexually fixated on her but was not moved from the dormitory room the pair shared.
About 11pm on the night of the fatal attacks, CCTV captured him dragging Ms Ayliffe-Chung onto a balcony where he slashed her neck before "launching" on her as she lay on the ground trying to defend herself from his knife.
Ayad then threw himself from the balcony, head first, with his arms extended as if he was attempting to fly, coroner Nerida Wilson said in finding published on Wednesday.
"The scene at the hostel was one of chaos, confusion and fear," she said.
Ayad then returned to the hostel where Mr Jackson was attempting to help Ms Ayliffe-Chung.
"What is the matter, calm down. What the f*** are you doing?" Mr Jackson was heard asking before Ayad came at him with the knife.
Ms Ayliffe-Chung died on a bathroom floor from a stab wound to her heart. She also suffered injuries to her head and neck.
Mr Jackson died in hospital six days later from a knife wound to his brain after being stabbed in his right eye, head, neck and chest.
Ayad was arrested and later diagnosed with paranoid schizophrenia, major depressive episode and cannabis dependence.
He was initially charged with two counts of murder, but these were dropped after he was found to be of unsound mind.
Ms Wilson said Ms Ayliffe-Chung and Mr Jackson were "in the prime of their life and enjoying a carefree experience of a lifetime" when they were killed.
"Their life, and their death, touched many."
However, she declined to hold a formal inquest saying it was unlikely to lead to recommendations preventing similar deaths in the future.
Ayad remains in custody but is expected to be deported to France.