the mayor there rahm emanuel says nun who know s anyone wh knows anything has a moral responsibility to come forward. >> and whoever did this, there is a special place for them. i hope they never see freedom. i hope they never see daylight. >> i want to bring in a really strong voice in chicago, father michael flager of chicago's catholic church, well-known activist who's been directly involved in trying to help find tai shan's killer or kaillers. father flager, thank you so much for joining me. >> thank you, brooke. >> your heart just goes out to this mother. >> yes. i was there monday afternoon. the mother this morning had bebeen laying at the site where her son was killed. we had to get her up and get her to the hospital to get some