How horrible. She was just profiled on Nancy Grace's show tonight. They are still looking for answers. Just so sad. She was from all acounts an very sweet kid with a great future. As police search for the killer of a Brooklyn teenager, her family is asking for any witnesses to come forward. Chanel Petro-Nixon's body was found June 22nd inside a bag on Kingston Avenue in Crown Heights. The medical examiner has determined she was strangled. "Somebody out there knows something that led to what happened to Chanel, said the Reverend Al Sharpton. I don't care if they're black, latino, white. You must come forward. We can't have community where our children go out with the garbage and we act like it's normal and remain silent." Police are offering a $22,000 reward for information leading to an arrest. Anyone with information is asked to call Crime Stoppers at 1-800-577-TIPS.