Horror : Judge Susan Criss has said she believes Robert Durst left a severed cat 's head on her doorstep . A judge who oversaw the acquittal of Robert Durst in a murder trial says she believes the suspected killer left a severed cat 's head on her doorstep . Judge Susan Criss presided over Durst 's trial in Texas when the real estate millionaire was acquitted of shooting and dismembering his neighbor in Galveston , Texas . But now , she has said she believes the real estate millionaire is a 'serial killer ' and that he killed his dogs to practice cutting up corpses . Judge Criss told 'Inside Edition ' : 'This was a perfectly clean and preserved cat head cut up by someone who knew what they were doing laying right there . ' When asked who she thought did it , Criss replied : ' I strongly believe it was Robert Durst . ' Real estate millionaire Durst was arrested last Saturday in New Orleans for the 2000 murder of his friend Susan Berman . Durst has been charged with murder in a Los Angeles killing 15 years ago , and has been suspected — but never charged — in the disappearance of his first wife in New York . His arrest came shortly before the finale of the HBO series 'The Jinx ' which detailed his links to the three killings . Judge Criss also said that she believes a young Durst killed his dogs and practiced cutting them up . She claimed : 'He had seven dogs and he named every one of them 'Igor ' and they all came to some unnatural deaths . Some very bizarre unnatural deaths . Suspect : Robert Durst was arrested after he seemed to give himself away during a taped interview for an HBO documentary investigating his possible links to three killings . 'He practiced on those dogs and that 's where he got some of those skills at cutting people up . ' The judge was referring to remarks made by Durst 's younger brother , Douglas , last year when he told an interviewer that Robert had a 'series ' of seven Alaskan Malamute dogs , each named Igor , who 'all died mysteriously , of different things , within six months of his owning them . ' Durst was charged on Monday in Los Angeles with first-degree murder in the shooting of Susan Berman , the daughter of a prominent Las Vegas mobster . He could face the death penalty under special circumstances that allege he ambushed her and murdered a witness to a crime . On Tuesday , Durst was transferred to a prison wing for the mentally ill in New Orleans while he awaits extradition to LA to face the first-degree murder charge . The troubled real estate heir was moved to the acute mental health facility at Elayn Hunt Correctional Center in Louisiana because he is considered a suicide risk , according to the sheriff 's office on Wednesday . Arrested : Durst is pictured being transported from Orleans Parish Criminal District Court to the Orleans Parish Prison after his arraignment on Tuesday . Questions also surfaced over his links to two missing California girls . But police in Oakland , California , say they have found no evidence to link him to the 1997 disappearance of Charlotte teenager Kristen Modafferi . A statement released yesterday said : 'The Oakland Police Department conducted an investigation with the assistance of the Federal Bureau of Investigation regarding the 1997 disappearance of Kristen Modafferi . 'The investigation was open and active for several years . At this time we do not have any evidence that indicates Robert Durst was involved in her disappearance . ' Police in Eureka , California , do however remain interested in Durst in connection with another missing persons case . Karen Mitchell , 16 , was last seen on November 25 , 1997 after leaving her aunt 's Eureka home .
Judge Susan Criss made the gruesome discovery outside her home . She says she believes suspected murdered Durst left it for her to find . The judge said that while there was no evidence of a struggle or struggle, she did not believe foul play was involved.