daron was his tool. >> reporter: but for the time being, it seemed daron's hands were tied.jected by the d.a.'s office twice before. this case getting a lot of baggage over the years? >> yeah, it did. >> reporter: and so if you go ahead with it, you're not only going ahead with the case, you're also kind of insulting the d.a.? >> yeah. >> reporter: years went by. the cathy torrez case grew colder by the day. and so did the marriage between cathy's sister tina and sam's brother armando. you and armando got divorced. >> yes. >> reporter: this have something to do with that? >> definitely it was all intermixed. >> reporter: daron wyatt was promoted to detective sergnt and his caseload shifted to other types of crime. but he never forgot his promise to mary. in part because of a milestone in his own life. >> my first daughter was born. and i remember going to mary shortly after that and looking her in the eye and saying, "i know -- i know now how you feel. i know it. i can feel it myself. i'm a dad now. you haven't given up. i won't give up." >> reporter: in 2003, nine years aft

i will introduce them in the order of presentation beginning from my left with daron acemoglu, my colleague. he is professor of economics here at mit and research includes political economy, economic development, human capital theory, growth theory, innovation, network economics. his recent research focuses on political, economic and social causes across societies. affecting the institutional political evolution of nations and how technology impacts growth and distribution of the sources and itself determined by economic and social sciences. yes written many books and articles and most famously-- [inaudible] a "new york times" bestseller in 2012. the second speaker is maria ramirez. she writes about us politics and univision and cofounded politbot that delivers messages about political developments in spain, the rest of europe and the us. she previously worked as a cosponsor-- [inaudible] she later was part of the founding team of the startup for crowdfunding in journalism in 2015 and the co-author of books and currently studying how to develop tools to reach an audience skeptical about med