hadsell's disappearance, her stepfather was charged in her murder. innocence and they're hoping that governor ralph northam's testimony can help prove that. virginia governor ralph northam, a key witness in a case that grabbed national headlines. >> and we're going the start here with the disappearance of a college freshman. >> reporter: a judge granting a subpoena request for ralph am in the trial of wesley hadsell. a.j. was northam's former patient. >> as a doctor he did something in his practice that's according to this judge relevant in this case. >> reporter: according to the court documents, northam prescribed a.j. antidepressants. two months before she vanished while visiting her family on spring break. at the time, hadsell was a member of the search party, issuing desperate calls for her safe return. >> maybe something bad could have happened. i don't know. >> reporter: soon after hadsell was arrested and charged with a.j.'s murder. our affiliate speaking to him behind bars. >> our focus needs to be on a.j. that's what i need, the focus on he