At least 20 people have been hurt and one suspected shooter killed, after gunfire broke out at an all-night art festival in New Jersey. A total of 16 of the 20 injured were treated for gunshot wounds and four of those hurt – among them a 13-year-old boy – were in a critical condition, according to Mercer County Prosecutor Angelo Onofri. Mr Onofri said the shooting broke out in the early hours of Sunday, at the event in the city of Trenton.



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