first. it s a misnomer to call them lone wolves because even though they are physically alone, of course they re interacting with other people on line. reporter: abu baraa says that online army of extremists is growing. people are being radicalized through their own research and really seeing the oppression as something that needs to be fought and opposed. and even to seek retaliation. reporter: meaning, they don t have to travel to camps like these and risk meeting the extremists face to face. dan rivers, cnn, london. still out front, the man who first identified the suspected bomber and was immortalize inside photo. for the first time, you ll hear him talk about the bombing from pointblank range. next, new video of the woman who married a suspected terrorist who lived in a tiny apartment with him while he made the bombs. did she know anything? lf. with so much noise about health care. i tuned it all out.
0 suffered so, so seriously in boston and elsewhere. cnn.com/impact. you can also go to the onefundboston.org web site if you d like to help out, as well. thank you very much for watching. i m wolf blitzer reporting. erin burnett out front starts right now. out front next. the latest on the investigation into the boston marathon bombings. on this friday night, what we have just learned about how the two suspected bombers learned to make the deadly devices. plus, the mother of the suspects has now left going? what do investigators want to talk about so much with her? we have new information about the wife of tamerlan tsarnaev. we have new video of her coming out of hiding today. first time we ve seen her in days. let s go out front. good friday even, everyone, i m erin burn out out front tonight. new developments in the boston terror investigation. a u.s. official tells cnn that one of the explosive devices found at last week s gunfight between police and the boston bombing