Law enforcement officials had said that Christopher Gillum, a former police officer in North Carolina, planned to attack a large festival. He was released without charges.
A crowd at the New Orleans Jazz & Heritage Festival at the Fair Grounds in New Orleans in May. A former North Carolina police officer was arrested and accused of targeting the festival.
It remains to be seen how far the government will go to tighten gun control in the country, which has experienced a string of high-profile shootings in recent years.