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Police, community leaders and family members of Hadiya Pendleton gather for an event near the shelter at a neighborhood park where Hadiya was killed on January 30, 2013 in Chicago, Illinois. Fifteen-year-old Hadiya was shot and killed when a gunman opened fire in the park yesterday while she was hanging out with friends on the warm rainy afternoon under a shelter in the park. Hadiya was a majorette in her high school band and recently performed in Washington, D.C. during the inauguration. President Obama's Chicago home is less than a mile from the park where Hadiya was killed. Another person was wounded in the leg during the shooting. (Photo by Scott Olson/Getty Images)

Nate Pendleton (R) is comforted near the neighborhood park where his daughter Hadiya was killed on January 30, 2013 in Chicago, Illinois. Fifteen-year-old Hadiya was shot and killed when a gunman opened fire in the park yesterday while she was hanging out with friends on the warm rainy afternoon under a shelter in the park. Hadiya was a majorette in her high school band and recently performed in Washington, D.C. during the inauguration. President Obama's Chicago home is less than a mile from the park where Hadiya was killed. Another person was wounded in the leg during the shooting. (Photo by Scott Olson/Getty Images)

Cleopatra Pendelton cries as she talks with Chicago Police Superintendent Garry McCarthy before a news conference seeking help from the public in solving the murder of Pendelton's daughter Hadiya Wednesday, Jan. 30, 2013, in Chicago. Hadiya, 15, who had performed in President Barack Obama's inauguration festivities, was killed in a Chicago park as she talked with friends by a gunman who apparently was not even aiming at her. The city's 42nd slaying is part of Chicago's bloodiest January in more than a decade, following on the heels of 2012, which ended with more than 500 homicides for the first time since 2008. It also comes at a time when Obama, spurred by the Connecticut elementary school massacre in December, is actively pushing for tougher gun laws. (AP Photo/Charles Rex Arbogast)

Nate Pendleton shows a picture of his daughter Hadiya on January 30, 2013 in Chicago, Illinois. Fifteen-year-old Hadiya was shot and killed when a gunman opened fire in the park yesterday while she was hanging out with friends on the warm rainy afternoon under a shelter in the park. Hadiya was a majorette in her high school band and recently performed in Washington, D.C. during the inauguration. President Obama's Chicago home is less than a mile from the park where Hadiya was killed. Another person was wounded in the leg during the shooting. (Photo by Scott Olson/Getty Images)

Cleopatra Cowley-Pendleton (R) is comforted by sister Kimiko Pettis and her nephew Jahlil at a neighborhood park where her daughter Hadiya was killed on January 30, 2013 in Chicago, Illinois. Fifteen-year-old Hadiya was shot and killed when a gunman opened fire in the park yesterday while she was hanging out with friends on the warm rainy afternoon under a shelter in the park. Hadiya was a majorette in her high school band and recently performed in Washington, D.C. during the inauguration. President Obama's Chicago home is less than a mile from the park where Hadiya was killed. Another person was wounded in the leg during the shooting. (Photo by Scott Olson/Getty Images)

Cleopatra Cowley-Pendleton is comforted at a neighborhood park where her daughter Hadiya was killed on January 30, 2013 in Chicago, Illinois. Fifteen-year-old Hadiya was shot and killed when a gunman opened fire in the park yesterday while she was hanging out with friends on the warm rainy afternoon under a shelter in the park. Hadiya was a majorette in her high school band and recently performed in Washington, D.C. during the inauguration. President Obama's Chicago home is less than a mile from the park where Hadiya was killed. Another person was wounded in the leg during the shooting. (Photo by Scott Olson/Getty Images)

Nate Pendleton comforts his son Nathaniel, 10, as they listen to speakers at a press conference in a neighborhood park where Nate's daughter Hadiya was killed on January 30, 2013 in Chicago, Illinois. Fifteen-year-old Hadiya was shot and killed when a gunman opened fire in the park yesterday while she was hanging out with friends on the warm rainy afternoon under a shelter in the park. Hadiya was a majorette in her high school band and recently performed in Washington, D.C. during the inauguration. President Obama's Chicago home is less than a mile from the park where Hadiya was killed. Another person was wounded in the leg during the shooting. (Photo by Scott Olson/Getty Images)

Police, community leaders and family members of Hadiya Pendleton gather for an event near the shelter at a neighborhood park where Hadiya was killed on January 30, 2013 in Chicago, Illinois. Fifteen-year-old Hadiya was shot and killed when a gunman opened fire in the park yesterday while she was hanging out with friends on the warm rainy afternoon under a shelter in the park. Hadiya was a majorette in her high school band and recently performed in Washington, D.C. during the inauguration. President Obama's Chicago home is less than a mile from the park where Hadiya was killed. Another person was wounded in the leg during the shooting. (Photo by Scott Olson/Getty Images)

Chicago Police Superintendant Garry McCarthy comforts Jahlil Pettis at a neighborhood park where Jahlil's cousin Hadiya Pendleton was killed on January 30, 2013 in Chicago, Illinois. Fifteen-year-old Hadiya was shot and killed when a gunman opened fire in the park yesterday while she was hanging out with friends on the warm rainy afternoon under a shelter in the park. Hadiya was a majorette in her high school band and recently performed in Washington, D.C. during the inauguration. President Obama's Chicago home is less than a mile from the park where Hadiya was killed. Another person was wounded in the leg during the shooting. (Photo by Scott Olson/Getty Images)

Cleopatra Cowley-Pendleton holds the hand of her ten-year-old son as they listen to speakers during an event with police and community leaders at a neighborhood park where her daughter Hadiya was killed on January 30, 2013 in Chicago, Illinois. Fifteen-year-old Hadiya was shot and killed when a gunman opened fire in the park yesterday while she was hanging out with friends on the warm rainy afternoon under a shelter in the park. Hadiya was a majorette in her high school band and recently performed in Washington, D.C. during the inauguration. President Obama's Chicago home is less than a mile from the park where Hadiya was killed. Another person was wounded in the leg during the shooting. (Photo by Scott Olson/Getty Images)

Ten-year-old Nathaniel Pendleton (L) walks with family members under the shelter at a neighborhood park where his sister Hadiya was killed on January 30, 2013 in Chicago, Illinois. Fifteen-year-old Hadiya was shot and killed when a gunman opened fire in the park yesterday while she was hanging out with friends on the warm rainy afternoon under a shelter in the park. Hadiya was a majorette in her high school band and recently performed in Washington, D.C. during the inauguration. President Obama's Chicago home is less than a mile from the park where Hadiya was killed. Another person was wounded in the leg during the shooting. (Photo by Scott Olson/Getty Images)

Nate Pendleton (R) walks under the shelter at a neighborhood park where his daughter Hadiya was killed on January 30, 2013 in Chicago, Illinois. Fifteen-year-old Hadiya was shot and killed when a gunman opened fire in the park yesterday while she was hanging out with friends on the warm rainy afternoon under a shelter in the park. Hadiya was a majorette in her high school band and recently performed in Washington, D.C. during the inauguration. President Obama's Chicago home is less than a mile from the park where Hadiya was killed. Another person was wounded in the leg during the shooting. (Photo by Scott Olson/Getty Images)

This undated family photo provided by Damon Stewart shows 15-year-old Hadiya Pendleton of Chicago. Pendleton was shot and killed Tuesday, Jan. 29, 2013, in a Chicago park as she talked with friends by a gunman who apparently was not even aiming at her. Pendleton, who had performed in President Barack Obama's inauguration festivities, is the latest face on the ever-increasing homicide toll in the president's hometown. (AP Photo/Courtesy of Damon Stewart)