William Heirens, dubbed "The Lipstick Killer" and convicted of three Illinois murders. Heirens was the longest serving inmate in Illinois at the time of his death on March 6, 2012. 8 1/2" x 11'' three page handwritten letter dated April 12, 2009, hand signed, Bill. Heirens. Includes the prison stamped envelope hand signed, Wm Heirens.