Buckshot ridge

the long version

"Clint's only wish is to transform the Delta ranch where he lives into a home, so that he can settle down peacefully with his wife-to-be, Belle Camden. All is going smoothly until Clint witnesses a brutal murder. The killer tries to lie his way out of it, but Clint is not the lying type. When threats don't work, the killer takes Belle hostage. All Clint must do is admit he's made a mistake - forget what he's seen, move on - and his fiancée will be returned to him unharmed. In a situation that goes against Clint's every moral code, in the end the choice can only be decided by gunsmoke - and blood"--Publisher description.