A man accused of murdering two women kept one of his victims captive for months, a U.K. court heard Tuesday. Mark Brown, 41, has pleaded not guilty to murdering Alexandra Morgan, 34, and Leah Ware, 33. Prosecutors say Brown met both of his victims through an escort site and that he had interests in “extreme sexual activities.” He allegedly kept Ware as a “voluntary prisoner” during a relationship which became increasingly controlling, jurors heard. Brown allegedly killed Ware in May 2021 but tried to make it seem like she was still alive by collecting her prescription and welfare payments. Prosecutor Duncan Atkinson KC says Brown then killed Morgan in November 2021 and burned her body in an oil barrel. In a note to a school friend, the court heard Brown described himself as a “psychopath with a conscience” who had done things which “weigh heavily on my heart, in my head and soul.”