article_snippet: A triple killer was allowed out on day release, leaving A triple killer free to murder a Good Samaritan in a decision today branded a 'catastrophic failure' by the chief inspector of prisons.
article_snippet: The convicted killer failed to return to HMP Springhill while released for the day in December 2010.
article_snippet: The convicted killer went out drinking all day and returned to a man's house where The convicted killer was found by police called out to reports of two men having a row.
highlights_snippet: Killer had murdered two previous men but was allowed out on day release .
  