Is Joran Van Der Sloot being physically abused in prison? His wife, Leidy Figueroa, claims he was stabbed Joran van der Sloot looks back from his seat during his murder trial at San Pedro prison in Lima, Peru, on&nbsp; Jan. 11, 2012 CBS News She married an infamous killer in prison. Then she had their baby. And now, she's become a media presence and human rights activist. Her critics claim she has a "complex personality" and suggest she's a "compulsive liar." She is Leidy Figueroa, the 24 year-old wife of Joran van der Sloot, who is currently serving a 28-year prison sentence for murder in Peru. Van der Sloot is also the main suspect in the disappearance of Alabama teenager Natalee Holloway in Aruba in 2005. In the past few weeks, Figueroa has become a media presence in Peru complaining about, what she alleges, is inhumane prison treatment of her 27-year-old husband. A few months ago, van der Sloot was transferred to a maximum security prison in the Andes Mountains. The Dutchman is the only foreigner in the facility. Recently, Figueroa told media in Peru that her husband has been physically mistreated by prison guards. She showed The Daily Mail a handwritten letter, which she says was from van der Sloot, that read, "This is worse than Guantanamo." Last week, a television camera crew followed Figueroa as she brought her complaints to a human rights organization in Lima. And this past weekend, Figueroa visited van der Sloot for the first time at the Challapalca prison near the border of Peru and Bolivia. After the visit, Figueroa said van der Sloot had been stabbed in the shoulder and waist by other inmates. She showed the media a bloody shirt that she claimed was her husband's. Van der Sloot's lawyer in Peru also told media in the Netherlands that the stab wounds were each two-inches deep. However, Peru prison officials say the alleged stabbing never happened. Jose Perez, the head of Peru's prison system, told a local newspaper that in dealing with Figueroa, "we are facing a compulsive liar, that lady is lying and it is not the first time." Perez said that van der Sloot had recently received a visit from his mother and a representative from the Netherlands and there were no complaints from them. There has been no word from Joran van der Sloot since the alleged stabbing over the weekend. Figueroa is standing by her claims. Perez told media, "No woman in her right mind would go to a maximum security prison and marry its most notorious killer."