Paul McCartney revealed that he recently tried writing a song about the killings of unarmed black men in Ferguson and Staten Island in an interview with The Associated Press. While the former Beatle admitted his initial attempts proved fruitless, he hasn’t given up on the song. He said, “I was thinking recently about all these protests in New York and around the country.” “I thought it would be great to put something down about that, just to add my voice to the thousands of people walking in the streets.