Foster brother of Tiahleigh Palmer sentenced to four years in jail

The foster brother of slain Brisbane schoolgirl Tiahleigh Palmer has been sentenced to four years' imprisonment after confessing to having sex with the 12-year-old.

Trent Thorburn, 20, pleaded guilty to two counts of perjury and one count each of incest and attempting to pervert the course of justice at the Beenleigh District Court on Thursday.

After serving almost a year in pre-sentence custody, Thorburn's sentence will be wholly suspended for a period of five years on January 20, 2018.

More to come.

12-year-old Tiahleigh Palmer. Source: Facebook.

Trent Thorburn pleaded guilty. Source: AAP

Tiah wearing her favourite colour purple in happier times. Source: Facebook.