Chitwood credits the U.S. Marshals Service and the Violent Crimes Task Force for the arrests. He says more than 100 people witnessed the May 2 shooting of 19-year-old Aaron Kearney, of Folcroft, in Upper Darby's Stonhurst Hills section - but very few provided information.
A district judge arraigned Brown on charges including criminal homicide, murder, and assault. Gregory was arraigned earlier on murder and related charges.
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Information from: Delaware County Daily Times, http://www.delcotimes.com