article_snippet: Cheng Chieh's used a 10-centimetre knife to slash passengers in the chest and stomach, in some cases as they slept, whilst travelling in a carriage on the metro system's longest stretch between two stations, The New Taipei District Court in Taiwan heard.
article_snippet: Student Cheng Chieh told authorities later that the stabbings felt 'like slicing tofu,' according to local news reports.
highlights_snippet: Wounded 22 passengers in bloody rampage on tube's longest stretch .
  
highlights_snippet: Used three-inch fruit knife to slash passengers in the chest and stomach .
  
highlights_snippet: Told authorities the stabbings felt 'like slicing tofu' 