>> reporter: steve duncan was a probation officer who started working with dea on cross-border drug casesck home into the house, and he was shot as he was walking up the steps towards the front door. >> reporter: revenge for an attempted hit on his cartel bosses, the arellano brothers. you've got a guy on the ground who's injured, begging not to be killed. >> right. yeah, he's begging for his life. "don't kill me." when he was begging for his life i did say, "this is for ramon arellano." >> i later talked to the wife who said she was at the front door -- >> i wanted him to know why he was dying. >> he's an assassin, a multiple murderer. >> reporter: steve duncan had no idea corona would later become part of his life. would you say the two of you are now friends? >> we share a fondness. i have known martin since i wanted to kill him in 1997. >> reporter: corona admits to eight murders. there may be more. did you end up actually killing people in prison? >> while i was in prison -- i'd rather not speak about that. >> reporter: he was born and raised on the beautiful socal coastline just out

an assassin a multipl murderer. >> reporter: steve duncan had no idea corona would lacome part of his wanted him 1997. >> reporter: corona admits ters.be more. did you end up actually killing people in>> while i was in -- ipe that. >> reportee was born he beautif socal coastline just outsideve anybody is just born a natural gangster. nobody's born a charlesmanson. >> reporter: corona says he ran away from home jtreet gang. >> and that became my family. >> are you involved i at this point? >> uh-huh, absolutely. >> reporter: in and out of ost inevitablith the mexic and absolutely the cartels. >> you either accept that you e the a third subject the alley -- >> their number came up. andy, it was time for them to go. >> reporter: firalled arellano felix cartel. inspraffic."they controlled the cocaine smuggled through tijuana, locked in a turf war with the notoriousaqui el chapo guzman. chapo guzman was killi their family memberslling family the fbi has added name to its tenlist, ramon oar >> reporter: ramon decided who got wh u.s. official put it.ested a gun byrian he happened to in his c

what's interesting is that after nick's interview, steve duncan says that corona violated his probation and ends up testing positive for meth and cocaine. >> i guess it's hard to get away from that lifestyle after all in the end. >>> coming up, switching gears, hot dogs, two new breeds have been added to the american kennel club list. it's never much, just what's left after i break a dollar. and i never thought i could get quality life insurance with my spare change. neither did i. until i saw a commercial for the colonial penn program. imagine people our age getting life insurance at such an affordable rate. it's true. if you're 50 to 85, you can get guaranteed acceptance life insurance through the colonial penn program for less than 35 cents a day, just $9.95 a month. there's no medical exam and no health questions. you know, the average cost of a funeral is over $8,300. now that's a big burden to leave your loved ones. as long as you're 50 to 85, you cannot be turned down because of your health. your premium never goes up and your benefit never goes down due to age. plus, your covera

steve wynn. i have it straight ahead on i have it straight ahead on "power lunch." with a $500,000 life insurance policy. how much do you think it cost him? $100 a month? $75? $50? actually,duncan $500,000 for under $28 a month. less than a dollar a day. his secret? selectquote. in just minutes, a selectquote agent will comparison shop nearly a dozen highly-rated life insurance companies, and give you a choice of your five best rates. duncans wife cassie got a $750,000 policy for under $22 a month. give your family the security it needs at a price you can afford. . >>> the dow was down 411 points at the low, the s&p is also down by .9% right now look at the individual sectors, telecom, utilities are your leaders, health care and energy are lagging. notable turnaround in the financials which had been down by more than 1% now off by 0.8%. >>> the fallout continues for wynn following sexual misconduct allegations against founder steve wynn stock rebounding but still down 14% in the past week contessa brewer joins us live from las vegas with the latest contessa >> and the flow of bad news continues here for steve wynn and the company he founded the republican governor's associatio