An example of conduct that constitutes a violation of Title 18 U.S. Code § 875 (c) Interstate communications. He says he will take matters into his own hands, "...street justice...", "...by putting a bullet between his eyes...". Killed. Dead. Vigilantism? Vigilante Justice? Threatening. A Death Threat. This was posted on Facebook. It did not violate Facebook community standards. It was reported to Facebook. Facebook found nothing wrong with it. US Federal Law. US Code. Title 18. United States Code. Felony. The FBI investigates and enforces violations of this law. The Federal Bureau of Investigation. The US DOJ enforces and prosecutes violations of this law. The US Department of Justice.