This song is probably about his anger at his parents, where the whole first verse is about his father and him not wanting to turn out like him, 'Half a Shadow' of his former self.
The second verse is about him saying his father was in the military and he hates him for that, and that his mother only wrote him a diamond bracelet in her will.
That's just me guessing though, I'm not certain what it truly means.
This song is probably about his anger at his parents, where the whole first verse is about his father and him not wanting to turn out like him, 'Half a Shadow' of his former self. The second verse is about him saying his father was in the military and he hates him for that, and that his mother only wrote him a diamond bracelet in her will. That's just me guessing though, I'm not certain what it truly means.