Named William News Today

Pamela brown in massachusetts. while the investigation continues here in boston, around new england. federal investigators want to know if tamerlan tsaranev knew a man named william. we have more details. what do we know about this man? >> reporter: good morning. william plotnikov. a boxer turned jihadist. its a similar narrative if you like what is believed to have happened to the accused bomber. he was born in russia. moved to canada as a teenager with his family. and some time after that, his...