 They all denied that they had been paid "large sums of money" to infect the children.Nenova and Vulcheva admitted that they had seen Ashraf at the Benghazi Children's Hospital, but testified that they did not communicate with him and did not perform any tasks assigned by him.The defense lawyers argued that physical evidence on all the charges was lacking, including, the blood bottles alleged to contain contaminated plasma, the device alleged to have been used by Kristiyana Vulcheva to distil alcohol, the syringes which were alleged to have been used to commit the crime, and the photos alleged to show sexual relationships between the defendants.