in what was likely to be a long heated debate. now he wonders whether tamerlan s shaving the beard may have been part of an islamic ritual purification prior to death. shaving the beard may be a way to blend in, not to attract scrutiny from security services in carrying out the boston attacks. reporter: tamerlan trained at y crew several times a month for free, a courtesy to the nationally ranked golden gloves boxer. dzhokhar rarely came, showing up two or three times in roughly two years. we have seen with western militants want to be jihadists a real emphasis on physical training, physical fitness, wanting to be prepared for jihad. reporter: almost immediately, the manager who is off screen to the right asks the men to follow posted gym rules and take off their shoes. younger brother dzhokhar complies right away. tamerlan does not, arguing instead, not giving any ground.
the brothers arriving with a friend. we spoke to the manager, who asked that we only use his first name, michael. he said tamerlan who you see in the hat looked differently. noticeably missing, tamerlan s fu full, bushy religious beard. the manager describes tamerlan as extremely opinionated and outspoken about his muslim religion and didn t ask tamerlan why he had shaved. now he wonders whether tamerlan s shaving the beard might have been part of a ritual purification prior to death. shaving the beard may be a way to blend in, not to attract scrutiny from security services in carrying out the boston attacks. reporter: tamerlan trained at y crew for several times a month for free, professional courtesy to the golden gloves boxer. dzhokhar rarely came, showing up