Three days before the Boston Marathon bombings, the two suspects were working out at a Boston gym.
Security video shows them arriving at the mixed martial arts center with a friend.
Tamerlan Tsarnaev’s religious beard, which he had for about two years, was gone.
He trained at the gym several times a month — for free — as a professional courtesy to the nationally ranked Golden Gloves boxer.
His younger brother Dzhokar, who is recovering from a gunshot wound, rarely showed up.