the exclusive retires who lived next door in apartment 303 went by carol and charlie gasko. >> josh bondtact whitey had a contact with. >> reporter: dick laird wrote an autobiography on bulger. he told us when bomd moved in, whitey had a problem. >> what better way to check it out. >> reporter: and he kept knocking, usually about once or twice a week. >> he was very nice to me, both very kind and generous, supportive, almost protective. >> reporter: during all those conversations, did he ever say anything that made you suspicious at all? >> >> no. >> reporter: acting on a tip from an fbi hotline, an agent showed up in 2011 with a picture of bulger and katherine graig. when you saw those pictures, what did you think? >> i was shocked. >> reporter: they came up with a plan. he called them to tell them their basement locker had been broken into. when they went down, the agents arrested him. >> i called my family and i said i helped the fbi arrest the most wanted man in america. >> reporter: after his arrest, did you ever hear from him again? >> yeah, i got a few letters from him. >> reporte

the reclusive retirees who lived next door in apartment 303 went by carol and charlie gasko. >> josh guy that whitey had a continuous kind of contact with, starting in '07. >> reporter: dick lehr co-wrote a biography on bulger. he told us when bond moved in whitey had a problem. >> he needed to know who was the guy in 2007 who moved in next door so what better try check that out but to knock on the door. >> reporter: and he kept knocking-- usually about once or twice a week. >> he was very nice to me. they were both very kind and generous, supportive. almost protective. >> reporter: during all those conversations, did he ever say anything that made you suspicious at all? >> no. >> reporter: acting on a tip from an f.b.i. hotline, an agent showed up in june, 2011, with a picture of bulger and catherine gregg. when you saw those pictures, what was your reaction? >> i was pretty shocked. >> reporter: bond helped the f.b.i. come up with a plan. he called the couple to say their basement storage locker had been broken into. when bulger went down to check, 40 agents were waiting. >> i call

the couple had been living under the alias charlie and carol gasko, a self-described businessman andife. in the third floor apartment, agents found $800,000 in cash and more than 30 weapons stuffed in the walls. whether bulger planned to shoot his way out is anyone's gas. he was lured to the basement garage on a ruse his storage locker had been broken into. the feared whitey bulger was arrested quietly and without incident. deborah feyerick, cnn, boston. >> little tidbit for you, in case you didn't know, whitey bulger, the movie, the oscar winning movie "the departed" was based on him. >>> south africa and the world are waiting to hear word about the condition of former leader nelson mandela. we'll find out why news of his condition is so secret. (announcer) born with a natural energy cycle... cats. they were born to play. to eat. then rest. to fuel the metabolic cycle they were born to have, purina one created new healthy metabolism wet and dry. with purina one and the right activity, we're turning feeding into a true nature experience. join us at purinaone.com just like a tablet. s

the couple had been living under charlie and carol gasko.apartment agents found $800,000 in cash and more than 30 weapons stuffed in the walls. whether bulger planned to shoot his way out was anyone's guest. he was lured to the basement on a rouge that his basement locker had been broken into. >> the prosecution has some problems already with its star witness. we'll see if things go off without a hitch. back in a moment. >>> thanks for watching. "around the world" is coming up next. see you tomorrow. >>> nsa leaker revealed. the 29-year-old edwarding hiding out in a hotel in hong kong. why did he escape to hong kong. >>> nelson mandela is hospitalized in intensive care. he's suffering from a lung infection. close friends say it's time to let him go. >>> prince harry shows off what which he do with an apache helicopter and empty air space. : welcome to "around the world." i'm suzanne malveaux. michael holmes is off today. why did he give it all up to reveal details about a top secret u.s. program. he said the public needed to know what the go