attorney andrew michaelson was tracking his texts and trades. >> andrew michaelson: we did see in mr.s instant messages communications where he would say, "a.m.d.'s revenues are going to be x," before a.m.d. itself announced them. and they were accurate. mr. rajaratnam's predictions were-- were accurate. >> whitaker: michaelson joined the s.e.c. in 2006 and this was one of his first cases. he remembers combing through stacks and stacks of galleon's trading and phone records, instant messages and emails. how many documents are we talking about? >> michaelson: hundreds of thousands. >> whitaker: hundreds of thousands. >> michaelson: sometimes you would have to sit there with a ruler to make sure that you're getting exactly who is talking, what phone number is calling which phone number at-- at-- at what time. >> whitaker: so you're connecting the dots. >> michaelson: we're connecting the dots. and then the next dot to connect is, "well, where's raj rajaratnam getting this information?" >> whitaker: finally, after six months of searching, they found the needle in the haystack in a single

raj's predictions were accurate. >> reporter: michaelson joined the s.e.c.06 and this was one of his first cases. he remembers combing through stacks and stacks of galleon's trading and phone records, instant messages, and e-mails. >> how many documents are we talking about? >> hundreds of thousands. >> hundreds of thousands? >> sometimes you'd have to sit there with a ruler to make sure you're getting exactly who is talking, what phone number's calling which phone number at what time. >> so you're connecting the dots? >> we're connecting the dots. then the next dot to connect is where's raj getting this information? >> reporter: finally, after six months of searching, they found the needle in the haystack in a single careless instant message from rumi kahn. >> i texted him and i said, don't buy polycom. in a text message. and then it says, till i took the guidance. >> you're saying, don't do anything until -- >> until i get my information. >> until i call my inside guy and get this inside information? >> right. >> reporter: it was the piece of evidence fbi

. >> remember there's a great singer named ingrid michaelson.s was her music video call "girls chase boys." ♪ let's not make it harder than it has to be ♪ ♪ girls chase boys >> well, she has a new single out. this video eclipses that video. you know why? because she used just snapchat. this is an anthem for girls breaking up with their boyfriends. take a look. ♪ ♪ i should have known better i saw the way you slither ♪ ♪ just like me ♪ stop crying stop crawling can't you see that i stopped falling ♪ ♪ i get it whatever ♪ >> here comes the >> this is very important. ♪ am i gonna miss you hell no ♪ ♪ i'm gonna say that the boys like you ♪ ♪ if he calls you up -- >> check that video out. it's awesome. ♪ oh, hell no >> okay. so we love this song so much, i played it for cass this morning. >> one of the rare times i loved it. >> you know -- >> the thing for girls breaking up with their boyfriends. but we decided we were in the makeup room with our curlers on and snapchatted ourselves. we didn't know the words so we just added it in. so show what we've

before the show, he talked with reporter felix michaelson of our sister station in los angeles about his chances in california. >> you've talked about the fact that you can change the electoral map. do you think you're going to win california and if so, what's your strategy to do so? >> we're going to give it an awfully good try. we're doing very well here. no other republican would be fighting for it, but we're going to be giving it a very good shot. >> you can see donald trump on "jimmy kimmel live"" at 11:35 after our late news over on channel 7. >>> bernie sanders continues to campaign through southern california. take a look at video from his ralfully cathedral city earlier today. had he trails clinton in the delegate count. today his focus focused on donald trump. >> and let me tell you that when we leave the democratic convention with the nomination, donald trump is toast. >> sanders will hold an event or is holding an event in los angeles county tonight. >>> less than a week remains for california voters to request a vote by mail ballot. the deadline is 5:00 p.m. tuesday. vot

. >> i guess i should -- [inaudible] joan michaelson, and i don't think this is working, but -- >> it is. >> it is? okay. speaking of stinky events, we are one week from the anniversary of the gulf oil spill, the sixth anniversary of the gulf oil spill. and i just did a huffington post blog on -- i'm probably going to get some rotten tomatoes thrown at me for saying this, the gift of the oil spill. because, i would like you to respond to this. because in some ways it sped up action. so i'd like you to talk about is how your principles that you wrote about in gray rhino, how we can speed this up. because what happened with the oil spill is it increased investment 32% like right out of the bat. now we're at $329 billion in investment in clean energy. we have the environmental movement got tailwinds. 37 states, four territories now have renewable energy standards and goals. it was like, boom, it was a hockey stick. we hate it. eleven people lost their lives, you know, 600 square miles of gooey crap on animals. there's science coming out of it, research coming out of it. so how do you use