11 people have already been charged.
Two teenage boys known as Boy A and Boy B were found guilty last year of the murder of Kildare schoolgirl Ana Kriegel.
The 14 year old’s body was found in a derelict building in Lucan Co Dublin in May 2018.
The boys were 13 at the time of her murder and 14 at the time of the trial so they legally can’t be named as their minors.
Gardaí launched an investigation when images and details were circulated on social media claiming to identity them
11 people have already been charged and a man in his mid-30s is the latest to be questioned.
He’s due to appear before Listowel District Court in Kerry this morning.
