"I want my closing statement to be one of love and a calling to my fellow Christians to help us end the death penalty," Brad Kieth Sigmon wrote ahead of his execution.

Brad Sigmon, the South Carolina man who beat his ex-girlfriend's parents to death with a bat, will become the first person executed by firing squad in the United States in 15 years on Friday, March 7,

A convicted double murderer has been executed by firing squad – the first such execution in the United States since 2010, according to the South Carolina Department of Corrections. The execution of Brad Sigmon,