The man who opened fire in an immigrant center, killing 13 people before taking his own life, felt he was persecuted by police, couldn't accept his "poor life" and was intent on killing himself and at least two other people, according to a letter mailed to a television station the day of the massacre. The letter's authenticity could not immediately be verified Monday. It was mailed to News 10 Now, in Syracuse, and postmarked Friday, the day Wong went into the American Civic Association community center and started shooting. Part of the letter reads: "I am Jiverly Wong shooting the people." The letter was dated March 18, more than two weeks before the shooting, which occurred in a neighborhood of homes and small businesses. It included photos of Wong smiling with two guns, a gun permit and his driver's license.