Prison chief calls Leidy Figueroa a `` liar , '' questions why she married prison 's `` biggest killer '' Joran van der Sloot stabbed in shoulder , waist in prison , Figueroa tells CNN affiliate . Joran van der Sloot 's wife says her husband was `` seriously injured '' in a stabbing at the Peruvian prison where he is serving time for murder , but a top prison official is calling her account an outright lie , according to reports . Van der Sloot's lawyer says he is innocent and that the murder weapon was planted by his wife to frame him. Van der Sloot murdered Stephany Flores , linked to 2005 disappearance of Alabama teen .
Prison chief calls Leidy Figueroa a `` liar , '' questions why she married prison 's `` biggest killer '' Joran van der Sloot stabbed in shoulder , waist in prison , Figueroa tells CNN affiliate . Van der Sloot's lawyer says he is innocent and that the murder weapon was planted by his wife to frame him. Van der Sloot murdered Stephany Flores , linked to 2005 disappearance of Alabama teen .