"Land of the Blind," by Craig Johnson, in The Strand Magazine, October 2016 - January 2017.
It's
Christmas Eve and Walt Longmire, sheriff of Absaroka County, Wyoming,
is on his way to a hostage situation. A crazy druggie wearing only
underpants has burst into a church and is pointing a gun at a woman's
head, mumbling about God demanding a sacrifice.
And
while Walt is the series hero the title clues you in that the star of
this particular rodeo will be his deputy Double Tough, who lost one eye
to a fire. I won't tell you what happens, but it's very satisfying.