Photos: American teachers in Abu Dhabi were warned of jihadi threat weeks before mom was stabbed to death in mall

American teachers in Abu Dhabi were warned that jihadis were threatening to kill them just weeks before a 47-year-old was stabbed to death in a mall by a burqa-wearing murderer, it emerged today.

Every American in the United Arab Emirates was warned today step up their security today after the kindergarten teacher was stabbed to death by a knife-wielding murderer in a burqa.

Ibolya Ryan, a mother of twin 11-year-old boys, was left dying in a pool of blood by the murderer after what police said was a 'brawl' in the toilets of a mall.

Detectives today released CCTV footage which showed how the suspect - whose gender they say they have not confirmed -  lay in wait for the teacher for an hour.

It suggests strongly the attack was a targeted murder.  Witnesses today told MailOnline the victim had been stabbed up to six times.

The victim was named by CNN as Ibolya Ryan, 47, a US-trained teacher who was described in an online profile as Hungarian-born and raised in Romania. She trained as a teacher in the United States.

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Culled From  MailOnline