A Cook County Jail guard has admitted to investigators that he helped six inmates escape over the weekend to give a political advantage to a former jail supervisor running for sheriff... The 36-year-old guard confessed that he allowed a convicted killer, two accused robbers and two others charged with aggravated kidnapping and battery to bust out of the jail to cast a shadow on Sheriff Michael Sheahan's management of the complex at 26th and California. The guard knew the negative publicity would hurt Sheahan's chief of staff, Tom Dart, who is running for sheriff... And the guard admitted he helped...