I lost something yesterday (into negative)

Who are the antagonists in the story "ali baba and the 40 thieves", and are they're bad guys?

Who is generally considered a postmodern author

In paragraph 5, president obama remarks: “you know, when trayvon martin was first shot i said that this could have been my son. another way of saying that is trayvon martin could have been me 35 years ago.” how does president obama use rhetoric in this quote to contribute to the overall meaning of his speech?