When you send negative vibrations out into the universe, i.e. even speech, repeatedly, what do you think is going to happen... Mix in drug and alcohol abuse with those type of words strung together over and over and it is not a stretch for things that can realistically occur, to occur. Biggie said he was ready to die, Pac rapped about his death, I'm certain we could find example after example, where things came to fruition for those who put it out there. Energy is never destroyed, it is either contained or released. Whether that be positive or negative. People bring shit on themselves, especially in a country made of laws that are bound by words.