For the second time in two years, Rodney Wayne Williams has been found guilty of murdering pregnant 16-year-old Tiffany Taylor.
And Williams, 68, has killed before.
Tiffany was last seen leaving a motel south of Brisbane seven years ago after Williams organised to meet her on a dating website and pay for sex.
Williams picked up Tiffany near the Waterford West motel in July 2015 and was accused of killing her at a remote industrial area before disposing of her body at Fernvale, 100km southwest of Logan.
Her body has never been found.
Williams was found guilty on Monday afternoon after the jury deliberated for almost five hours in the three-week trial.
He had also been found guilty of Tiffany's murder and sentenced to life in prison after a 19-day trial in March 2020.
But Williams won an appeal in June 2021 and was granted a retrial.
Williams had also been convicted for murder in 1978.
He stabbed an elderly neighbour in the back during a robbery and was sentenced to life in prison but was released on parole after 15 years behind bars.
At this month's retrial the court heard Tiffany's blood and DNA were found in Williams' Hyundai sedan.
Williams told police Tiffany had suffered a nose bleed when he picked her up.
He claimed that he had given her a lift to Redbank Plains but changed his story, saying he dropped her off at a truck stop on the Warrego Highway west of Brisbane and had not seen her since.
He denied having sex with the teen, telling police he told Tiffany he didn't have any money but she insisted on meeting him anyway because she thought he was interesting after reading his dating website profile.
Footage on motorway cameras and phone tracking details on cell towers indicated that she was in his vehicle on the drive to Fernvale, crown prosecutor Caroline Marco said.
Williams created a false trail of communication with Tiffany on the dating website after killing her, the court heard, with his last message saying: "Sorry I didn't turn up, decided I wasn't going to pay for it".
He was intercepted by officers at a Brisbane train station with a bag of clothes and sentimental items in August 2015, a day before he was to be interviewed by police.
