dr. michael baden, a fixture on fox news. you looked through the materials. what struck you right away?tances, first, that she was found by a dumpster. somebody dumped the body there after death. usually that happens in homicidal situations. >> reporter: baden says in 50 years of death investigations he's never heard of anyone killing themselves by drinking bactine, and in his opinion there wouldn't be enough lidocaine in one bottle to kill annie anyway. so you were convinced that annie mccann did not commit suicide by drinking bactine? >> that was my opini, yes. >> that's when it went, for me, personally, i went, "holy cow, she was murdered." >> reporter: still, no change in posture for the baltimore police. >> if you come across being angry, no one is going to help you. you come across -- if you're nice, no one's going to help you. >> reporter: disappointed and desperate, the mccanns march on all the way, in fact, up to capitol hill. to senator charles grassley, one of the country's most powerful members of congress. chairman of the senate judiciary committee. >> if i can help, i want