Lyric discussion by robertBoss 

I see a couple different possible interpretations:

  1. He's an alcoholic and in a fit of rage he shot his girlfriend or wife. "I shot my love today" "Drown in alcohol" "I lost my head again". And no regrets it "would you cry for me". It also seems like in a moment of panic he hid the body somewhere in the desert. This could very well be his confession to the police after they bring him in to question him. In the end he's talking about all the morals he has abandoned through alcohol. "Moon glued to...heaven" "All the little pigs have god" Implies that he is not like the "little pigs" he is now godless.

  2. this is possibly less likely but more interesting. this song is based on Charles Whitman. "I shot my love today" Before Whitman went on his rampage he killed his girlfriend and mother. "So kill your health". Whitman at the time had been on various drugs that contributed a deteriorated mental state and physical health. I don't know if he was alcoholic so I'm not sure if "Drown in alcohol" fits here. "Kill everything you love" Again, he killed his mother and girlfriend but this line could also mean that he intends to continue killing (this song being his thought process leading up to the shooting). "And if you live..." again possibly means he intends to kill more. "Suffer with my ghost" as I understand it. Whitman left a note basically explaining that he hoped he would be killed. the person in this song appears to also want to be killed. Finally the lyric "Just a tumor in my head" after Whitman's autopsy it was revealed that he had an aggressive brain tumor that may have contributed to his rampage.

as I said 2 is more interesting but I'm not sure if all of the lyrics would really be accurate for that example.

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