article_snippet: But they efforts to take it were thwarted by a safety holster.
article_snippet: But Tamerlan, 26, would not survive the night.
article_snippet: He was killed in a chase and gunbattle with police that began with reports of an "officer down" at MIT.
article_snippet: The MIT police, who are designated as special officers by the Massachusetts State Police, patrol the sprawling campus in Cambridge.
highlights_snippet: Testimony focuses on shooting death of MIT officer, 26 .
  