. >> joining me now is nbc news justice corporate pete williams and james cavanagh, an msnbc analyst. pete, thank you for being here on the first night of pronouncing the new names. i'm going to need your help. pete, i want to go to the lawyers, first of all, representing the new defendants. are they court appointed lawyers? what do we know about how they got their lawyers? >> no, they are private counsel. some representing the two on immigration, which has arisen a couple days ago when they were picked up. there was a question about their student visas. the fact is the fbi has been trying to figure out what happened here for several days now. as i understand, the sequence of events here. after tsarnaev is arrested on friday night and after the shootout in waterford, they get his cell phone and look back for the record of his cell phones and texts. he's texts several of these individuals. two, they talked to dzhokhar tsarnaev's actual roommate who tells them the story about these men coming in and taking something out. so that got them on to the trail. they have been questioning the m

i want to welcome back former atf special agent in charge, james cavanagh and welcome rob mcfadden whoelped run downer intelligence ops at ncis. james, let me start with you. do we know how the fbi knew of these three guys existence in the first place? how did they come upon these three guys? >> well, what happened, s.e., was at this watertown shoot-out, they picked up the telephone that was left. and also tamerlan or dzhokhar, i'm not sure, they picked up one of those phones and they found text messages. they went back to the roommate and interviewed the roommate and he told them the three friends had come over. and they had removed these items. they picked up the text messages. you look like the bomber. lol. go to my room, take anything you want. so that's how they got them. they were arrest asked the roommate. >> let's talk about those text that's james just referenced, dzhokhar referencing his friends, you'd better not text me and come to my room and take whatever you want. as a person who has experience interviewing this sort of people, what do you take from the mindset of somebod