The narrator states that a prisoner used to wear women's underwear and that he felt "pretty, oh so pretty." This is a reference to a well-known lyric from the musical "West Side Story," which starred cast member Rita Moreno (Sister Peter Marie).
When officer Rivera meets Alvarez for the first time after Alvarez blinded him, officer Rivera is idly playing with a set of dice. Rivera throws the dice on the table before storming out and he rolls 'snake eyes' (two 1's)