Purdue student gets life sentence

LAFAYETTE, Ind. -- With the victims' South Korean parents watching, a former Purdue University graduate student was sentenced to life in prison without parole Friday for murdering two sisters on campus.\nThe parents and other relatives of Yeunkyung and Hyokyung Woo traveled from South Korea to see Zhan Yin, 28, sentenced.\n"My wife was and is so shocked by the death of her daughters that I fear she will also lose her life," their father, Kwang Kuk Woo, said through an interpreter on Friday.\nYin, a biology doctoral student from China, pleaded guilty but mentally ill to two counts of murder, burglary and attempted arson in April.\nTippecanoe Superior Court Judge Donald Johnson sentenced Yin to an additional 42 years in prison on the lesser charges.\nYin told authorities he went to the West Lafayette apartment of Yeunkyung Woo, 31, on Aug. 2, intending to kill her because he believed the biology student meant to do him harm.\nWhen her sister, 29-year-old Hyokyung, answered the door, he hit her in the head with a hammer and stabbed her to death. He waited inside for Yeunkyung to come home and killed her in the same manner.\nHyokyung Woo was visiting from Chicago and had applied for admission to Purdue. The women's bodies were discovered the next day.\nYin was arrested Aug. 6 when he was refused entry into Canada at a border crossing near Niagara Falls, N.Y.\nDefense attorney Steven Meyer said Yin would receive psychiatric treatment while in prison.