The murder of an abortion doctor at his church in Kansas referred to by Mr. Hale was Dr. George Tiller. On May 31, 2009 Tiller was fatally shot in the side of the head by anti-abortion extremist Scott Roeder, as he served as an usher during the Sunday morning service at his church in Wichita. Roeder was convicted of murder on January 29, 2010, and sentenced to life imprisonment. Tiller survived a previous shooting in 1993.
This episode marks the first time that Olivia is shown visiting her mother's grave on-screen after learning of her mother's death back in season two's Taken (2000).