No chances

It's funny what you'll come across. I was doing a search on Eric Dane on Netflix, and somehow, through tangential random thoughts/reference, ended up at the Wiki page for Gary Gilmore.

'According to Mikal Gilmore's memoir, Utah's tradition dictated that five men comprise a firing squad - four of them with live rounds, and one with a blank, so as to not know who fired the fatal shot.

Upon inspecting the clothes worn by Gary Gilmore at his execution, Mikal noticed five holes in the shirt - indicating, he wrote, that "the state of Utah, apparently, had taken no chances on the morning that it put my brother to death"'

Wikipedia