THE ringleader of the migrant gang – who are accused of breaking the jaw of a helpless 15-year-old girl – is thought to have been behind a string of similar assaults
The girl, named only as Leonie, heads up the gang of six migrants who are purported to have carried out several Sharia-inspired attacks across the European capital of Vienna.
Leonie, 15, was among the six Muslim youths from Chechnya who allegedly beat up a teenage girl, named as Patricia, in the centre of the Austrian capital city.
Patricia, a Polish schoolgirl, was falsely accused of pulling off a Muslim woman's headscarf.
The attack, which left her with a broken jaw in two places, shocked Austria when footage of the beating went viral.
However, now prosecutors believe they have enough evidence to prove this attack was in fact one of many carried out by the migrant gang.
Prosecutors, who are still waiting for the trial to begin, expect Leonie to face a string of further allegations.
She is accused of beating up another girl the day after the attack on Patricia, where Leonie is said to have kicked her in the face while two boys held her down.
The young thug is also said to have attacked a girl in a youth centre in Lower Austria as well as being involved in a club brawl.
Her gang hit Patricia 22 times in the head during the horrific attack on the young Polish schoolgirl.
One of the members, named as Ahmet K, or Abuu, later posted a picture of himself flexing his muscles with the caption, 'Jawbreaker'.
He initially apologised for the attack but later posted: "To all those I offended, insulted or beaten. I do not give a s***. Next year I will do it better."
Abuu, who was sentenced to six months' probation for robbery in September, could face a prison sentence if convicted of the attack on Patricia.
The names of the rest of the six-member gang, who are all aged between 15 and 21, have not been released.
Patricia told the press that there was a massive cheering mob watching on while she was violently assaulted.
In the clip, she keeps her hands in her pocket and takes the savage beating, despite blood dripping from her face.
The group is reported to have said: "She has pulled the headscarf down, demolish her!"
She said she did not react to the attack because she had no chance of fleeing the terrifying thugs.
Patricia said: "What happened was to teach me a lesson.
"She told the others that I had ripped a woman's headscarf off, and they all flew into a rage.
"I knew if I had fought back, I would only have been hit more. So, I just waited until it was over."
The youngster said she was threatened by the gang not to got to the police, but her sister did so while she recovered in hospital.