Despite pleas by human rights groups and legal representatives who have argued that Hill's intellectual disability should have made him ineligible for the death penalty, Hill died by injection at the prison in Jackson, Georgia. His time of death was 7:55 p.m. ET, said spokeswoman Gwendolyn Hogan.

The lone gunman who carried out a gun attack at the Florida State University library had sent packages to several people in the days leading up to the deadly shooting.

(CNN) -- Her ankles bound, her mouth covered with duct tape, Christina Anderson was bashed at least 12 times in the head. Her 8-year-old son Ethan's body was burned beyond recognition. Those were some of the grisly details released this week by the San Diego Medical Examiner's office investigating the deaths connected to the Hannah Anderson kidnapping case, a case that captured the nation's interest last month.