Pardon Me I've Got Someone to Kill

I know you'll excuse me if I say goodnight
 I've got a promise to fulfill
 Thank you for listening to my troubles
 Pardon me I've got someone to kill
 I warned him not to try and take her from me
 He laughed and said if I can I will you know I will
 So tonight when they get home I'll be waiting
 Pardon me I've got someone to kill
 I know I'll surely die for what I'm about to do
 But it don't matter I'm a dead man anyhow
 This gun will buy back the pride they took from me
 And also end this life of mine that's worthless now
 By the time you tell the sheriff it'll all be over
 He'll find me at their big house on the hill
 He'll find a note explaining why I killed us all
 Now it's time to go I've got someone to kill