[WARNING: GRAPHIC PICTURE AT LINK] The parents of a tragic Brooklyn tot savagely mauled by his stepdad's pumped-up pooch often left the boy alone with the killer dog, neighbors said Sunday. "He had no chance," said neighbor Sabrina Ramos. "I don't know how someone would leave a child that small with a dog that big." Neither Jayelin Graham's mother, Saquina (Honey) Jubeark, nor his stepfather, Damian Jones, have been charged in the boy's horrific death late Friday. Investigators say the brutal pooch - a 65-pound Cane Corso named "Machete" - chomped down on the 4-year-old boy's throat after his mom...