Just a little tinkering should remedy that. Keep up the good work. First it refers to Elvis, then to someone who hears Elvis still lives. That's confusing, even when reread. It distracts, and any number of other verbs might smoothly and properly portray the same thing.
Night attack is unclear.
I would say it was indeed the form that gave you all the trouble. I'll bet if you were to simply tell this tale, you would have all the charm and none of the forced elements that are throughout this attempt. I'm not sure what a night attack is specifically. Dear Josh, Without getting into the technical aspects of what you were trying to accomplish, I really enjoyed your poem. I'd just like to know if you did any research of your own about the King, or is this a product of your imagination.