A teenager accused earlier of trying to assist the Islamic State group has pleaded not guilty to accusations he tweeted out the names and addresses of military personnel with threats of violence.

Jalil Ibn Ameer Aziz, 19, pleaded not guilty Tuesday to federal charges of solicitation to commit a crime of violence and transmitting a communication containing a threat to injure.

Assistant federal public defender Thomas Thornton called Aziz “just a kid who made mistakes” and said he does not believe Aziz is a threat. He said his client is “overwhelmed” by the charges against him.

During the brief hearing, Thornton withdrew a request that Aziz be released from Dauphin County Prison and placed under house arrest with his parents, saying Aziz’s parents love him but “don’t feel they can undergo the scrutiny” of the courts and media.