Jonathan Wienke, a Department of Homeland Security intelligence analyst with the the Office of Intelligence and Analysis, was arrested on June 10, 2016 for unlawfully carrying a weapon into the DHS headquarters in Washington D.C. on June 9, 2016. Despite the strict security measures, Wienke attempted to bring in a loaded revolver, folding knife with 3 inch blade, handcuffs, infrared camera, and pepper spray into the DHS headquarters building. On June 13, 2016, he was released but is still under federal investigation. Court documents filed by the federal government indicate that Wienke “was conspiring with another to commit workplace violence, and more particularly may have been conspiring or planning to commit violence against senior DHS officials in the building.”
According to the Guardian, his home, which is 75 miles away from the DHS building, was searched for any further evidence.
In his affidavit for a search warrant Eric Mann listed the potential crimes as attempt and conspiracy to assassinate, kidnap or assault a member of the executive branch of the government, false impersonation of a federal officer and possession of a firearm in a federal facility.
It is unknown at this time if the federal prosecutors will pursue any additional charges against Wienke as they are still investigating the incident. So far, there have been no new reports of additional evidence collected, indications of a plan, motive, or intended targets.