Article by John Riley on alleged BTK ("Bind, Torture, Kill") serial killer, Dennis L. Rader, of Park City, Kansas, whose respectable profile helped him escape detection, includes comments by Dr. Katherine Ramsland, assistant professor of forensic psychology at DeSales. According to experts, Radar's behavior fits patterns that have been seen before. "Nothing about this surprises me," said Dr. Ramsland. "A person diagnosed as psychopathic would be chameleonic. They know the right behavior, the right words, but they don't feel anything. They are able to compartmentalize. They can live their lives sincerely, and also be out there killing, because they set those parts apart." Radar is suspected of at least 10 murders since the 1970s and has confessed to six killings, so far. One of those murders occurred in 1994, after Kansas reinstituted the death penalty. Radar is being held on $10 million bail.