A man who allegedly killed his wife's nephews after learning she wanted a divorce and then fled to Hong Kong, was brought back to Los Angeles on Friday to face murder charges, authorities said.
Deyun "Jeff" Shi, 44, is accused of killing brothers William and Anthony Lin, 15 and 16, who were found by their parents at their home in the 400 block of Fairview Avenue in Arcadia on Jan. 22.
At a news conference announcing Shi's status, the boys' father, David Lin, thanked the community for their support and law enforcement for bringing "the evil" back to the United States to face justice.
"It's very, very difficult for me and my wife," he said while cradling large photos of his beaming sons in shirts and ties. "Day and night, every moment, it's pain for us. As you can see ... we used our love to raise these two boys. Just in one night, they're gone. They're gone forever."
Family attorney Rose Tsai said the suspect took two "wonderful, wonderful young brothers."
"They were happy," Tsai said. "They were studious. They liked to volunteer. They had a very, very happy family life. This was all shattered because of this tragic incident."
Shi faces two counts of murder with an allegation that he used a deadly and dangerous weapon, a bolt cutter, in the commission of the crimes, prosecutors said. He is expected to make his first appearance in a U.S. courtroom on Monday in Pasadena, authorities said.
Shi is also charged with one count of injuring a spouse with an allegation of personally inflicting great bodily injury and using a deadly and dangerous weapon in the commission of the crime, a maul, a type of hammer.
Shi allegedly fled that day to Hong Kong, where he was arrested.
Shi is accused of killing them after becoming enraged that his wife had obtained a restraining order against him and had begun divorce proceedings, officials said.
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Shi, a Chinese national who was living in La Canada Flintridge, allegedly assaulted his wife the day before the killings.
Shi fled on a plane to China, but was taken into custody by Hong Kong authorities the day after the boys' bodies were found once he landed at Hong Kong International Airport, officials said.
China has no extradition treaty with the United States, but since 1998, Hong Kong has allowed the return of fugitives through a mutual legal assistance arrangement with the U.S.
Los Angeles County Sheriff Jim McDonnell said law enforcement worked hard to navigate a complicated network of local, state, federal and international bureaucracies to bring the suspect back.
"Justice will be served for the young teenage victims and a family shattered by tragedy," he said.
NBC Wire Services contributed to this report.