The heartbroken family of a 13-year-old Staten Island boy knifed to death on a MTA bus gathered Saturday as they tried to make sense of the unexplainable violence that took the beloved teen from them. A 14-year-old boy was charged with with murder, manslaughter and weapons possession in the death of Syles Ular. The suspect’s name was not released because of his age. “I don’t want to tell you .