In the garage, investigators found multiple refrigerators with vials of unknown liquids, unknown liquids in gallon-size containers, a centrifuge and other laboratory equipment, authorities said. In an open refrigerator and freezer, investigators saw a "significant volume of material," including vials and storage containers "with liquids of different colors and compositions," McMahill said. "The scene presented a high level of complexity with materials that have not yet been identified and still require careful assessment," McMahill said.