article_snippet: Garth Callaghan, 45, from Glen Allen, Virginia says doctors do not know how long his has to live but his's determined to remain strong. '
article_snippet: Garth Callaghan, 45, from Glen Allen, Virginia says doctors do not know how long his has to live but his's determined to remain strong .
highlights_snippet: Virginia dad Garth Callaghan has been diagnosed with cancer three times in past two years and doctors said it will take Virginia dad Garth Callaghan life .
  