article_snippet: Seventy-two hours before the bombing, his son was seen working out at the Wai Kru mixed martial arts gym with his son younger brother.
article_snippet: : Ibragrim Todashev was Tamerlan's sparring partner at the Wai Kru mixed martial arts gym near Cambridge.
article_snippet: The two bonded over Chechnya and religion, sometimes laying out rugs to pray to Mecca inside the Wai Kru mixed martial arts gym near Cambridge.