Authorities in South Australia have disclosed significant developments in their investigation into the online threats targeting Glenunga International High School.

Recently unveiled are new unsettling images and information about an online alias, as officials continue their search for those responsible, following the dismissal of charges against an 18-year-old earlier this year.

The threats, which surfaced in May, allegedly outlined a horrifying plan to assault the school using bombs, knives, and a vehicle, along with a menacing intent to scald a student with boiling oil at a bus stop.

Investigators have identified the online alias “Brian Cole” and noted that this individual likely accessed a shared computer after 9 p.m. between November 19 of last year and May 13.

The computer in question was equipped with the gaming platform ‘Steam’ and included the game ‘Black Myth: Wukong’.

Police are now seeking help from the public to find the suspect.

“We’re seeking to be more overt and seek the assistance of the public to try and identify the individual,” Deputy Police Commissioner Linda Williams said.

“All lines of inquiry are still open to us, we’ll follow the evidence as to where that takes us.”

Investigators believe “Brian Cole” may have experienced a change in living circumstances around May 13, 2025, potentially leading to reduced computer access.

As part of the renewed investigation, students were shown a collection of images during a school assembly run by detectives. 

These images included a spider with its legs severed and arranged to resemble the school logo, and a picture containing the handwritten words “CHARLES FROM HERO”.

Police have also released a list of common words and phrases allegedly used by the suspect, including “steal the souls” and “I have spells which are just for the hero”. 

This information, along with the images, has been shared with students and staff at Glenunga International High School in the hope that someone will recognise the handwriting or phrases used.