article_snippet: Still people don't know why it happened or why the unknown man did it.'
article_snippet: Their mother Erika, 34, said: 'I was shocked.
article_snippet: I don't understand why anybody would approach a group of children and do this.
article_snippet: It's not like this is a dangerous city - this's a small town.
article_snippet: It was completely random.
article_snippet: This could have been a murder inquiry quite easily.'
highlights_snippet: CONTAINS GRAPHIC CONTENT .
  