Brenden Bennetts has officially begun to serve his life sentence behind bars for the murder of Queensland schoolgirl Jayde Kendall.
It took a jury just four hours to convict the 21-year-old on Thursday after he pleaded guilty to manslaughter on the first day of his trial in the Brisbane Supreme Court.
Justice Ann Lyons said Bennetts had betrayed the trust of an inexperienced girl, whose death had had a profound impact on her family, friends and community where she lived.
"Your ability to calmly detach from events around you is alarming and concerning, as is your calculated web of lies and deception," Justice Lyons said.
"You showed no respect for her body after death, just as you had shown no respect for her in the last moments of her life."
Jayde was killed shortly after Bennetts picked her up from school on August 14, 2015.
He then stole money from her bank account, destroyed evidence linking him to the 16-year-old and continued to lie to police that he had not harmed her until her body was discovered in an isolated field 13 days later.
Her father Bruce Morrissey, who raised Jayde alone after her mother died when she was seven, had a warning for the future parole board who would have to consider whether to release Bennetts into the community.
"Think about those that you love and care about around you and then ask yourself would you feel safe, him being around your daughters, your children," Mr Morrissey said.
Bennetts will be eligible for parole in 2035.