Hammers can do lots of damage...
http://www.purdueexponent.org/2001/08/03/campus/rage.html
Documents indicate rage may have led to murders
By Laura Pelner
Campus Editor
Anger from being cut off by a car while riding his bike may have resulted in the murder of two Koreans on Aug. 2.
According to an affidavit filed Monday in Tippecanoe County Superior Court, Zhan Yin, 27, a graduate student in biology, told police on Aug. 8 that he killed the Woo sisters after almost being struck by a car. Hyo Kyung Woo, 29, of Chicago, was driving the vehicle.
Yin told officers he was riding his bike on Arnold Drive when a car "nearly hit him," the affidavit said.
Apparently Yin was angry and he followed the driver to an apartment in the Purdue Village. Hyo Kyung was visiting her sister, Yeunkyung Woo, 31, a Purdue graduate student in biology, at the time.
The affidavit says Yin followed the car to an apartment and then removed a hammer from a backpack he had with him on his way up to the apartment, 151 Arnold Drive, Apt. 9.
Yin told officers the female he followed shut the door to the apartment but he "found the door unlocked and he entered the apartment behind her."
According to the affidavit, Yin said he struck Hyo Kyung in the head from behind with the hammer and continued to strike her. He also stated he took a knife from the kitchen and stabbed her throat.
Yin then said he moved the body into the bedroom, covered it and began cleaning the apartment, according to court documents.
While Yin was cleaning up from the first murder, Yeunkyung entered the apartment.
According to the affidavit, Yin said that when Yeunkyung turned toward him he recognized her as a fellow biology student and he then began striking her in the head with the hammer.
When she asked him why he was doing this Yin said he had no choice, said the affidavit.
After beating Yeunkyung with the hammer Yin said that he stabbed her in the throat and then covered up her body, he told police.
Yin then apparently turned the burners on the stove on in an attempt to conceal the odor. According to the affidavit, Purdue Police Chief Linda Stump told Yin she believed he was trying to blow up the building and Yin didn't respond, but just looked away.
Two other officers, detectives Steve Dietrich and Carrie Costello, noted that when Yin was asked if he was trying to start a fire he "nodded his head affirmatively," said the affidavit.
Furthermore, according to the affidavit, Yin also admitted to police that before he left the apartment he took Yeunkyung's wallet from her backpack and took a set of keys from Hyo Kyung because "he liked the Acura symbol on the key chain."
According to the affidavit Yin said he considered taking Hyo Kyung's car but decided against it.
When he left the Purdue Village apartment he returned home on his bike, got his car, drove to the Lafayette Target store and got new clothes and also went to Wal-Mart to get a new hammer.
Yin said he drove to the Wabash River, threw his bloody clothes and hammer into it and then went to a fast food restaurant to get dinner for himself and his wife. He then returned home for the evening.
Later, according to court documents filed Friday, Purdue officials said Yin logged into two computers in the Math Building. He logged in under his name and that of Yeunkyung during the early morning hours of Aug. 3.
Later on Aug. 3 Yin and his wife, Jun Ke, drove to Chicago. Upon the couple's return from Chicago that same evening Yin was questioned about his knowledge of using Yeunkyung's computer account and her murder. According to court records he denied knowledge of the murders at that time.
On Aug. 5 Yin and his wife traveled to Oklahoma State University to visit a friend of Yin's.
"She (Jun Ke) advised that Yin had admitted killing the women, wanted her forgiveness and indicated that he did not want to face the victims' parents," according to the affidavit. "She advised that she tried to get him to turn himself in, but he stated he did not want to spend his life in prison. He also stated that he did not know why he did it but also stated that he did not hate them."
Upon the couple's arrival in Oklahoma on Aug. 6 Jun Ke contacted Oklahoma State University Police about Yin's revelations. Later that day preliminary charges were filed and a warrant was obtained for Yin's arrest.
On the evening of Aug. 7 Yin was arrested while attempting to enter Canada near Amherst, New York. On Aug. 8 Yin waved extradition and Dietrich and Stump flew to New York into custody.
According to court documents, upon being notified of his rights twice, Yin indicated "that he wanted to take responsibility for what he had done."
