Marco Antonio Benitez Jr., a 24-year-old resident of Bradenton, Florida, has been arrested for allegedly attempting to sell a stolen moisture density gauge on Facebook Marketplace. This device, containing Cesium-137, a radioactive isotope, poses significant health risks if mishandled. The Florida Highway Patrol initiated an investigation on May 26 after receiving tips about the online sale. Following the investigation, they arranged an undercover purchase but moved directly to Benitez's home when he failed to meet. Using radiation detection equipment, troopers confirmed the presence of nuclear material, leading to the recovery of the device. Officials stated that the radioactive source was undisturbed and secured as evidence. Florida Department of Highway Safety and Motor Vehicles Executive Director Dave Kerner praised the troopers for their expertise and collaborative efforts, emphasizing that such specialized equipment can only be handled by licensed operators. Benitez faces charges of grand theft and illegal possession of a controlled radiation device without a license.