what does this mean “they won’t teach you this in classes but look it up. Hamilton was wearing his glasses why? If not to take deadly aim? it’s not him or me the world will never be the same i had only thought before slaughter this men will not make me an orphan of my daughter

Question

Extrinix · Answer

"Hamilton wears his glasses why?
  If not to take deadly aim?
  It's not him or me the world will never be the same.
  I had only thought before the slaughter,
  this man will not make me an orphan of my daughter."

This is basically stating that Hamilton murdered the daughter of the [current] narrator right in front of the narrator.