article_snippet: Jurors also saw surveillance footage of two figures approaching Sean Collier's police cruiser on the MIT campus, spending about a minute at the car, and leaving.
article_snippet: This forensics photograph released by the U.S. Attorney's office and presented during Tsarnaev's trial
article_snippet: The court was also shown CCTV footage
article_snippet: Jurors also heard testimony on .
article_snippet: 2013--held up a twisted piece of metal which had been found on Boylston Street and told the jury: '
article_snippet: Empty: the jury was shown a picture of the deserted courtyard behind MIT's Koch Institute.
article_snippet: On Tuesday, jurors were presented with photographs of the . blood-stained message that prosecutors say Tsarnaev wrote inside .
article_snippet: Jurors were also presented with Tsarnaev's Twitter posts, . which ranged from jokes about girls, food, and homework, to .
highlights_snippet: In the fifth day of testimony, the jury was also shown remnants of the homemade bomb and a piece of a tattered black and white backpack .