Las Vegas police arrested an Israeli national after discovering a residential property configured as an apparent biological laboratory with freezers, a biosafety hood, centrifuge and more than 1,000 samples. Several people at the residence reported becoming acutely ill; samples were transferred to the National Bioforensic Analysis Center in Maryland for federal analysis. Authorities added firearms charges after finding multiple weapons. Local reporting links the seized operation to a company name appearing in a separate federal case in California; investigators are exploring possibilities including hazardous‑material mishandling or counterfeit medicine production. The incident raises biosecurity and public‑health concerns about illicit lab activity in residential settings.