(Reuters) - A suspected gunman was fatally shot after multiple people opened fire at an all-night arts festival in New Jersey, wounding 20 people including a boy who is in critical condition, authorities said on Sunday. Prosecutors said a 33-year-old man was killed and a second suspect arrested after gunfire erupted at 3 a.m. EDT (0700 GMT) at the event in the city of Trenton, about 60 miles (100 km) southwest of New York City. ... Multiple weapons have been recovered," Angelo Onofri, prosecutor for Mercer County, told a news conference.



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