A developing report is coming out of Detroit regarding a man who has been arrested after buying explosives from an undercover agent, amassing weapons and talking about carrying out an attack, federal authorities said. Sebastian Gregerson, 29, was discovered with unregistered possession of a destructive device and unlicensed receipt of explosive materials.

Excerpt From Fox News:
He made an initial appearance Monday in U.S. District Court and is being held pending a Thursday detention hearing. The Detroit News, which first reported the allegations, said two of Gregerson’s supporters declined to comment outside of court. The Associated Press sent an email Tuesday seeking comment from Gregerson’s court-appointed lawyer, Miriam Siefer.