[urlhttps://www.dailytelegraph.com.au/news/nsw/teen-killer-wrote-is-with-zeeshan-akbars-blood-after-caltex-stabbing/news-story/f7e14e59d1045025ba4ee57fd1cfed38][/url]
They were aged 16 and 15 when they attacked Zeeshan Akbar, 29, inside a Queanbeyan Caltex in April 2017.
Both pleaded guilty to murder and several other offences related to the rampage on April 6-7.
Mr Akbar died in a pool of blood after being stabbed three times by the 16-year-old offender, identified as DM.
The Pakistani student had let the pair inside the Bungendore Rd service station using his swipe card about 11.46pm.
The agreed statement of facts revealed DM stabbed Mr Akbar in the back before putting his hand around his neck.
The other teen, known as DS, jumped the counter and attempted to remove a cash register while DM continued to stab Mr Akbar.
“ (DM) approached Akbar who was lying on the floor, (DM) dipped his finger in Akbar’s blood, walked to the glass window, and wrote the letter ‘I’ on it,” a statement of agreed facts said.
He then returned to Akbar, once again dipped his finger in his blood, walked to the glass window, and wrote the letter ‘S’.”
The pair made off with the cash register and cigarettes.
Crown prosecutor Mark Hobart SC described the crime as “chilling” and “one of the worst I’ve ever seen”.
The murder was captured on CCTV. Justice Geoffrey Bellew refused to release the footage because it was so disturbing.
Earlier in the night, DM told friends he had “joined ISIS” and showed them a picture on his phone of a man standing beside a severed human head.
When he was arrested, DM yelled out: “Allah Akbar, Allah Akbar, I’m going to cut your heads off. There is only one God.”
In his cell at Queanbeyan Police Station he scrawled “IS” on the wall in tomato sauce.
DM had earlier smashed a beer bottle over the head of a 34-year-old man, for which he was charged with assault occasioning bodily harm.
The morning after killing Mr Akbar, the pair hailed a passing motorist who DM stabbed in the chest before driving off in the car.
The man suffered a collapsed lung. Justice Bellew yesterday said he was lucky to be alive.