An Argentine woman celebrated Valentine's Day by marrying her twin sister's killer.

According to reports, Edith Casas, 23, was wed to Victor Cingolani on the most romantic day of year. However, their romance was cut short when an angry crowd who substituted congratulatory rice for eggs and stones greeted the newly wedded couple.

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The mob convened outside the civil registry office to declare their dissatisfaction with the woman who married her twin sister's convicted killer.

The couple was married in Pico Truncade in southern Argentina, the same city where Edith Casas' sister, Johana, was shot twice days before her 20^th birthday in July 2010. Johana's body was found on the outskirts of the city.

Cingolani, who was dating Johana at the time of her death and was convicted of her murder in June 2012. The court had found Cingolani as a "willing participant" in the killing of Edith's twin sister giving him a 13-year prison sentence. However, Cingolani has maintained his innocence and is in the process of appealing the conviction.

"I'm going to get married to the person I love and not the person who killed my sister," Edith explained before arguing her husband's innocence.

"Victor is not a violent person and I'm not mad," Edith continued. "We've got no doubts about what we're doing. We love each other."

Cingolani told a local news channel the morning of the wedding that he didn't think his love for Edith 'would have so many repercussions worldwide'.

One of the consequences was Edith being disowned by her family. Her father, Valentine Casas, was quoted saying that he thinks 'Johana is with God and Edith is with the Devil'.

Edith's mother is convinced that her daughter is suffering from psychological problems and fearful that Cingolani will take her life, too.

"I've always said that she is threatened by the Cingolani family; I'm afraid that something might happen to her because he is a killer and a manipulator," Marcelina Coasas said.

However, Edith was tested for 'mental dysfunction' before the wedding ceremony and was cleared of insanity by the psychological testing.

It is not uncommon for woman to be attracted to killers. Hybristophiliacs are woman who become sexually aroused by their incriminated partners.  One of the most famous women with hybristophiliacs is Bonnie from the duo "Bonnie and Clyde". Many high-profile criminals, specifically the one's who have committed the most heinous crimes, are those who receive the most adoration by women. In some cases, criminals end up marrying their admirers.

After the mass shooting in Aurora, men and women took to Twitter to express how "hot" they thought the shooter, James Holmes, was. That is a typical reaction those with hybristophili endure. Could tests over looked this commonly known psychological disease when it came to Edith Casas? Or could the woman who married her sister's killer have a valid explanation for doing so?