LIMA, Peru (AP) -- Joran van der Sloot pleaded guilty on Wednesday to the 2010 murder of a Peruvian woman he met at a Lima casino who was killed five years to the day after the unsolved disappearance in Aruba of an American teen in which he remains the main suspect.
"Yes, I want to plead guilty. I wanted from the first moment to confess sincerely," he told the panel of three judges that will decide his fate. "I truly am sorry for this act. I feel very bad."
Prosecutors are asking for a 30-year prison sentence.
The 24-year-old Dutch citizen did not show emotion during his brief confession in fractured Spanish and did not call on the services of a Dutch translator provided for the proceeding.
He bowed his head later when his lawyer argued that he killed Stephany Flores, 21, as a result of "extreme psychological trauma" he suffered from the fallout of the 2005 disappearance on the Caribbean island of Aruba of Natalee Holloway.
Conferring privately with defense attorney Jose Jimenez before leaving the courtroom, Van der Sloot briefly smiled.
The judges have 48 hours to render a sentence and the presiding magistrate, Victoria Montoya, said it would reconvene Friday to do so.
Van der Sloot's trial opened last week but was adjourned to Wednesday after he asked for more time to decide how to plead. He said then that he was inclined to confess but did not accept the aggravated murder charges the prosecution sought.
Van der Sloot, who wore faded jeans and an untucked light-blue button-down shirt, entered the plea in hopes of a reduced sentence.
He had confessed to the May 30, 2010, killing long ago.
Shortly afterward, he told police he killed Flores in a fit of rage after she discovered on his laptop his connection to the disappearance of Holloway. His lawyer claims the killing was manslaughter, for which the minimum sentence is 5 years.
Police forensic experts disputed that claim and the attorney for the victim's family contends Van der Sloot killed Flores, a business student from a prominent family, in order to rob her. Prosecutors are seeking a 30-year prison sentence on first-degree murder and theft charges.
The prosecution van der Sloot killed Flores with "ferocity" and "cruelty," beating and then strangling her in his Lima hotel room, concealing the crime and fleeing to Chile, where he was caught several days later after Flores' rotting body was found in his hotel room.
Prosecutors say he took more than $200 in cash plus credit cards from the victim and made his initial getaway by driving her car to a different part of Lima.
The length of the sentence is completely at the judges' discretion, said court officials and a leading Peruvian criminal attorney, Luis Lamas. The attorney for the family of the victim, Edwar Alvarez, has argued for life in prison for Van der Sloot.
"In the court record, this man has submitted to psychological examinations and they have concluded that he is a psychopathic person," he told reporters. "What judge would give a psychopath a penal benefit?"
The victim's father, circus impresario and former race car driver Ricardo Flores, attended the opening of the trial but not Wednesday's hearing.
Reached by phone before Van der Sloot's plea, he said he wasn't watching the trial on TV but would await word from his lawyer.
"This matter hurts us," he told The Associated Press.
Van der Sloot pleads guilty to killing Peru woman
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