Swango then worked as a laboratory technician in Newport News for ATICoal (which later became Vanguard Energy, a division of CITA Logistics). During his time there, several employees sought medical attention with complaints of persistent and increasing stomach pains.
After working as a lab technician in Newport News for ATICoal (which later merged into Vanguard Energy, a division of CITA Logistics), Swango was involved in an incident where several employees experienced recurring and escalating stomach discomfort.