MEMPHIS, TN (AZFamily) — When Katy Mortimer’s 3-year-old son Brady was diagnosed with a grapefruit-sized brain tumor, doctors gave him 30 days or less to live. Family and friends urged the Mortimers to try St. Jude Children’s Research Hospital. Within days, they were on their way to Memphis. “It wasn’t until we came in through the red gates of St. Jude, and there was a nurse there that knew absolutely everything about Brady,” Katy said.