Tiahleigh's Foster Father Hospitalised Before Court Date
Murdered schoolgirl Tiahleigh Palmer's foster father is due to face a Queensland court on Wednesday after being taken to hospital overnight.
The 56-year-old has been accused of killing Tiahleigh last year.
The 12-year-old was last seen alive on October 30 when she was dropped off at Marsden State High School, south of Brisbane.
A missing person alert was only issued six days later, hours before an unidentified body was found by three fishermen on the banks of the Pimpama River.
Her 56-year-old foster father was arrested on Tuesday, a week after homicide detectives seized a car he owned at the time of the 12-year-old's death.
He was expected to face Beenleigh Magistrates Court on Wednesday, but on Tuesday night was taken to hospital for an undisclosed medical condition.
A Queensland Police spokesman confirmed a 56-year-old man was taken to hospital for a non-life threatening condition and had not sustained any injuries.
He was one of the pallbearers at her funeral and a registered foster carer at the time
Three other people, including Tiahleigh's foster mother, were also taken into police custody on Tuesday.
A 20-year-old man related to the foster parents was arrested on charges of perjury and attempting to pervert the course of justice related to a Crime and Corruption Commission hearing.
The foster mother, 54, was in custody on Tuesday night and later charged with perjury and attempting to pervet the course of justice.
"She will be a key witness," Detective Inspector Damien Hansen said earlier on Tuesday.
"All three of them are expected to be witnesses."
A 19-year-old man was also arrested on the same charges as well as one count of incest.
The older man is set to face Beenleigh Magistrates Court on Wednesday morning.
Police knew Tiahleigh was planning to meet someone on the morning she disappeared but the breakthrough in the case happened last week when they seized a blue Ford sedan for forensic examination.
The revelation that the car was previously owned by Tiahleigh's foster father came after her biological mother Cindy Palmer posted about it on Facebook.
The investigation was described by Det Insp Hansen as one of the most difficult cases he had ever worked on.
"It was a real 'whodunnit' type of investigation," he said.
KEY EVENTS IN MURDER OF BRISBANE SCHOOLGIRL TIAHLEIGH PALMER:
October 30 - Tiahleigh is dropped off at Marsden State High School
November 5 - A missing person alert is issued hours before an unidentified body is found by fishermen on the banks of Pimpama River
November 7 - Body confirmed as Tiahleigh's, SES volunteers begin searching river
November 8 - Friends hold candlelight vigil
November 9 - Detectives question school friends
November 10 - River search resumes but police admit they have few answers; Queensland government vows to review response processes for missing children in state care
November 11 - Search upgraded to include land surrounding school
November 13 - Police set up Crime Stoppers marquee, believe Tiahleigh may have wagged classes
November 14 - Tiahleigh's funeral honours a "beautifully imperfect" girl
November 30 - Police divers return to search Pimpama River
December 4 - Search widened after Tiahleigh's shoe found; police release footage of classroom two days prior to disappearance
February 15 - $250,000 reward offered for information; more than 300 people contact Crime Stoppers
March 14 - Tiahleigh's biological mother Cindy makes public appeal to help find killer
March 23 - Police begin searching vacant house at Waterford West on Logan Reserve Road
July 11 - Queensland government announces new protocols on how authorities are to deal with children missing from out-of-home care in direct response to Tiahleigh's disappearance and murder
September 13 - Police seize a blue Ford Falcon XR6 they believe is linked to Tiahleigh's disappearance.
September 20 - Tiahleigh's foster father is charged with her murder; his wife and two males are also taken into custody.
AAP; Photos: AAP