trained together in 2011. that same year, tsarnaev s friend, brendan mess, who also trained at the gym was murdered in a near beheading, along with two pals. tsarnaev was never interviewed by state troopers in connection with his friend s murder or the murder of the other two victims, eric weissman and rafael teken. did tamerlan ever tell you that police had come to speak to him about what he knew about the drugs, about anything? no. no. you know, i mean, around here, we call it nhi. reporter: which is? no humans involved. reporter: okay, which means? there were three drug dealers that were murdered over drugs and money. reporter: that, at least, was the perception, even though only one of the victims faced drug-related charges. shortly after the murders, todashev moved to florida. tamerlan tsarnaev left boston and traveled to dagestan, where it s believed he became radicalized. was it weird to you that tamerlan just disappeared after
those murders? no, because we had been in serious dialogue about him becoming a professional boxer. he definitely had become disillusioned and he was very hesitant to do it. reporter: allan says he gave fbi agents todashev s name. todashev was shot by an fbi agent after allegedly implicating himself in the murders. what questions do you have over the death of ibragim todashev? i think everybody has questions. that s a bizarre story and situation. it s very hard to believe. reporter: a seemingly bizarre coincidence of two unthinkable crimes and a cast of characters all connected to tamerlan tsarnaev and his days working out at a boston gym. deborah feyerick, cnn, boston, massachusetts. the middlesex district attorney s office is heading that investigation into the triple murder case. it says it s conducted a thorough investigation from the start and says that
height. clearing the ring. hopping in. jumping rope. like, yeah. like, he was on top of the world. reporter: allan trained both tsarnaev and another russian speaker, e er speaker. they were polar opposites as individuals. tamerlan was flashy and flamboyant. ibrahim was a bit more reserved, but he was hot headed. there were a few times that ibrahim and tamerlan prayed to mecca in the gym. which wasn t abnormal for ibrahin to do it. he did it from day one. it was abnormal for tamerlan. they were getting closer? it seems so. reporter: allan says they trained together in 2011. that same year tsarnaev s friend, brendan mess, who also trained at the gym was murdered in a near beheading along with two pals. sources cesar nye yves and todashev were involved in the
todashev s autopsy report remains under lock and key. the fbi has asked the florida medical examiner not to release details, citing a, quote, active investigation. a cia agent arrested in central america. we ll take you live to the pentagon, next. [ male announcer ] wouldn t it be great if all devices had backup power? the chevrolet volt does. it s ingeniously designed to seamlessly switch from electricity to gas to extend your driving range. no wonder volt is america s best-selling plug-in. that s american ingenuity to find new roads. right now, get a 2013 chevrolet volt for around $269 per month.
murders. do you believe that tamerlan and maybe ibrahim had anything to do with those triple murders? i know for a fact that, you know, tamerlan was probably if not daily, at least several times a week hanging out with brendan mess. at his house. at that house where he was reporter: allan says tamerlan s reaction was strange. almost dismissing his friend s murder. at first i just, you know, took it for nervous energy. you know, because tamerlan always was, you know, always put up a mask. a front. he always appeared in control. reporter: shortly after the murders todashev moved to florida. tamerlan went to dagestan where he reportedly became radicalized. allan says he gave fbi agents todashev s name. todashev was shot by an fbi agent after allegedly implicating himself in the murders. that s a bizarre story and situation. it s very hard to believe. deb feyerick there reporting.