article_snippet: he brother in a failed attempt to steal he .
article_snippet: A Massachusetts Institute of Technology police officer who found a colleague in a colleague squad car covered in blood three nights after the Boston Marathon bombing frantically repeated two words into A Massachusetts Institute of Technology police officer who found a colleague in his squad car covered in blood radio 'officer down, officer down.'
article_snippet: shooting a police officer three days later as a police officer and a police officer brother .
article_snippet: tried to flee The city.
article_snippet: after a gun battle with police.