Early Wednesday morning, Missouri set a record for its number of executions in a year.
Paul Goodwin was the 10th man executed, more than any other year since the death penalty was reinstated in the state.
Goodwin was put to death for sexually assaulting Joan Crotts, a 63-year-old widow, and then killing her with a hammer in 1998 in St. Louis County.
In denying clemency, Gov. Jay Nixon referred to the crime as "brutal" and "senseless."