Tamerlan and Dzhokhar Tsarnaev: Watch Boston Bombers Work Out 72 Hours Before Attack

Boston Marathon bombings suspects Tamerlan and Dzhokhar Tsarnaev were working out together at a Boston gym 72 hours prior to the deadly attack, according to a video released by CNN.

Security cameras at "Wai Kru" mixed martial arts gym recorded footage of the Tsarnaev brothers, as the manager — "Michael" — noticed that Tamerlan, who he described as "extremely opinionated and outspoken," had shaved off the bushy "religious beard" he'd kept for over two years.

"I didn't ask [him] why he'd shaved because I didn't want to engage in what was likely to be a long, heated debate," said the gym manager according to CNN. However, "Michael" now wonders if the shaving may have been part of an "Islamic purification ritual prior to death." Watch the video below: 


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