what if we construe the precipitating events for the two murders as appropriate for a kruskal count? that's creative. we could, um, look for the linkages and find any key pattern. you know, you may help us narrow down the lists to a few key suspects. mm-hmm. or maybe just one. i mean, um... your friend. it was a weekend to relax with friends and family. but even here, there was no escaping it. it's called moderate to severe chronic plaque psoriasis. once again, i had to deal with these embarrassing, flaky, painful, red patches. it was time for a serious talk with my dermatologist. this time, he prescribed humira. it fights my moderate to severe plaque psoriasis. it works inside my body to help clear the surface of my skin. in fact, in clinical trials, most adults saw 75% skin clearance. and the majority of people were clear or almost clear in just 4 months. and the makers of humira offer financial assistance for those patients who qualify. humira can lower your ability to fight infections, including tuberculosis. serious, sometimes fatal events can occur, such as, infections, lymphoma, or other types of cancer, blood, liver and nervous system problems, serious allergic reactions, and new or worsening heart failure. before starting humira, your doctor should test you for tb. ask your doctor if you live or have been to a region where certain fungal infections are common. tell your doctor if you have had tb, hepatitis b, are prone to infections, or have symptoms such as fever, fatigue, cough, or sores. you should not start humira if you have any kind of infection. make the most of every moment. clearer skin is possible. ask your dermatologist how humira can help you, today. combine two pounds of potatoes and some cooking oil with a packet of hidden valley ranch, and we have a side dish that might just upstage the main -- ranch potatoes. 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[ male announcer ] hidden valley ranch. hershey's bliss. one square inch of incredibly smooth rich chocolate. one square inch of joy... fun... indulgence... one square inch of bliss. hershey's bliss. my witness says you threatened munson. said you'd kill him. wasn't like that. so, you don't deny saying it? david: why don't you tell we were just talking about what would happen in the ring-- me and him. and you said you'd kill him. it's a figure of speech, detective. doesn't look like a figure of speech to me. does it look like a figure of speech to you, agent sinclair? are you ready to charge him? no, i'm not. so he's free to go then. you need to stay in los angeles, mr. ellis. why? because you're a material witness in a murder investigation. you need to get yourself a lawyer. so this is how it's gonna be? just get yourself a good lawyer, ben. you don't know anybody, i'll make a phone call. i should have known you would take their side. i am down here in the middle of the night helping you out, am i not? yeah. at least that much has changed. (sighs) don: so, more people watched mixed martial arts fight on pay-per-view than a baseball playoff game on network tv. yeah, this is big business. i saw larry alston on the news the other night. well, who's that? larry alston? he's the guy that partnered up with all the big casino money and bought the all-out fighting league. he's trying to clean it up, take it mainstream. yeah, well, this whole thing ain't gonna help, huh? yeah. neither is losing his fighter. i mean, it's not that munson could have taken tino alva. oh, who's that? alva's the afl's champion. well, so, how you know all this? the guys i teach krav maga to are way into it. they're so excited for that alva-bainsworth rematch. why are we looking at this? i thought the thing with david's friend was lapd. yeah, well, it might be two murders in two states, right? meanwhile, we're just playing a supporting role for now. just got off with the vegas me. they found a heart defect in lopez's autopsy. the death was ruled accidental. so, the other fighter wasn't drugged? they stopped looking once they found the defect, so they're gonna pull an archived tissue sample and take another look. all right, meanwhile, charlie's gonna need data, so we'll start looking into their background, and we'll talk to this guy, uh, larry alston? i thought this was an lapd homicide. yeah, key suspect's a guy i know from the old neighborhood. new york, right? yeah, bronx. what can you tell me? munson was killed with 1080 poison. poison? 1080 is the brand name for sodium fluoroacetate. it disrupts the body's ability to process oxygen, induces cardiac arrest. to be honest, i almost missed it. so, it's pretty hard to detect? unless you're looking for it, but munson had a strange allergic response, so i was looking. and how do you get your hands on 1080 poison? agricultural companies, chemical suppliers, nurseries. it's mostly used to protect crops from animal pests, but it's not regulated. all right, and how was it delivered? munson's reaction was localized to the tissue in his mouth. so what? you think maybe he drank it? probably, but the lapd checked all the water bottles in the gym. they came up clean. okay, so, uh, we have a generic chemical and no forensics on delivery. sorry there's nothing more specific. you and the suspect old friends? yeah. back during grade school, me, uh, ben ellis and another kid-- we were pretty tight. and now? uh, you know, ben and i sort of drifted apart after high school. you know how that is. how about the other kid? earl's, uh... earl's dead, so... sorry. thank you. mm. appreciate it. amita: it's tough to determine linkages when these two seem to have almost nothing in common. yeah, the first fighter killed, octavio lopez, is hispanic; he's from colorado. and the other, pete munson, is a white guy from wisconsin. fighting seems to be the only thing in common. well, then... then that's it. what's it? that the common link is fighting. i mean, look at the fighters' histories. i have to assume that the motive in both of these deaths involves the fighters' rankings, right? what? david's friend, ben ellis... with lopez and munson out of the way, he moves to the top of the list. yeah, you're right. (knocking) stanley, you're a long way from the biochem department. amita, you remember professor novich. hi. i hear you're taking fleinhardt's seat in the texas hold 'em tournament? i am considering it. well, you should think again. with fleinhardt in space, i'm in line for the title. i don't think that's the way it works, (laughing): but okay... okay. well, i've seen your game, eppes. won't make it at the big table. my game is vastly improved. been practicing, have you? i've been working on a specialized training program. should make me more than ready by tournament time. guess we'll just see about that. what was that? geek trash talk? actually, what that was, was terribly rude, terribly inappropriate. he has a lot of nerve coming in here with that attitude. (chuckles): oh, come on, charlie. he's trying to psych you out. just ignore him. so tino alva-- he's been the afl champion for quite a while now, right? alston: alva's 22 and one. he hasn't lost a fight since he took the championship away from bainsworth. so what's the deal? this guy pete munson, he would've been up next? if he could've gotten past bainsworth in the qualifier. pete was a promising fighter. if you could get past the tattoos, he was a good kid. charismatic. college degree. our sport's not as brutal as it looks. his death was an aberration. how about octavio lopez? his death an aberration, too? we're gonna be looking into his death as well. what? do you think they're related? they were fighting the same guy. look, we're in the middle of filing a petition to the state athletic commission. trying to put our best foot forward. it would be extremely unfortunate if it were to get out that these deaths were connected. i understand. we're not gonna rule out anything at this point. agent sinclair. glad you joined us. i appreciate the call. results from the vegas medical examiner on lopez came back positive for 1080 poison. wanted you to be here for this. here for what? we just confirmed the original hit. this is your friend's locker and gym bag. these markers indicate traces of sodium fluoroacetate. that's 1080. i just wanted you to see for yourself who it was you helped walk out of the station last night. find a judge. get a warrant to pick up ben ellis. thanks a lot. so looks like that credit card trace paid off. manager says he's up in the room. you notify lapd? they're on their way. i don't want to wait. i'm gonna bring him in right now. ben! it's david. open up. let's go. get your stuff, man. let's go. why? where we going? jail. but i told you, i didn't do anything. they found traces of the poison in your gym bag and your locker. now, get your stuff. ]let's go. poison? yeah, you're under arrest. you have the right to remain silent. if you can't afford an attorney... colby: you all right? >> enter wolverine's backyard bonanza. you could win the ultimate backyard. i'm talking stainless gas grill, fire pit, furniture, the works! wolverine's backyard bonanza. enter now: wolverine.com. ihop's holiday hotcakes-- white chocolate chip mint, pumpkin praline or sweet eggnog, starting at just $4.99. make it an ihop day. get $5 off your next visit when you buy a $25 gift card. after allegra-d, i can breathe. 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(chuckles): well, obviously, i didn't think this was gonna happen. novich is a world-class authority on animal defense mechanisms. this says that my office has been contaminated with a derivative of thioacetate. that's the stuff that gives skunk spray its smell. says i can't go back in until they determine the level of toxicity. okay, well, when will that be? minimum of three or four days. and my laptop is in there, which means i can't work on my poker training program. hi. hey, you guys. hey. what happened in here? i don't want to talk about it. is this the file on ben ellis? yeah. what is that smell? (laughing) he got skunked. okay, look, is he familiar with the los angeles area? well, he fights out of new york, but he's been out here training for about a month. so ellis' knowledge of the area will give us a prior distribution on his location. we can start with his training regimen, who he works for, who he knows. we should also factor in the people that david knows from the old neighborhood who might now be in l.a. because if they were old friends, then ben's escape routes might go through points in common. yeah. that's exactly what david was thinking. so there you go. thank you. bye. (sighs) hey, you knew this guy ben ellis pretty well? something on your mind? you really think he's capable of a double murder? these murders do move him to the top of the rankings. i'm sensing you don't think he fits the profile. i think our killer has to be methodical. planned out two murders in advance. spent two years in a youth correctional facility. and that's just for starters. you're a psychologist. you know what those kind of places can turn you into. what did he do to get in? three of us went to a movie. it's me, ben ellis and... another kid, earl day. after the movies, i decided to go home, and ben and earl went to hang out with earl's lady over at this burger spot she worked at. ben got into it with some guy over there. as usual. gun came out, and earl was killed. and you blame ben? so did the state of new york. charlie: so next time, we'll get into strong type versus end-point weak type estimates. look, i just want to thank you all for dealing with the change of venue. i know it's a little strange. drive safely, okay? hey, dad, this is my graduate harmonic analysis seminar. bye-bye. in our living room? yeah, we usually meet in my office, but, uh, kind of locked out at the moment. how'd you get locked out? oh, it's a long story. okay. but, i can tell it quickly. there's this professor, who's my competition in the texas hold 'em tournament. what do you mean? he stole your keys? no. he turned my office into a toxic swamp. he's a biochemist. he works with skunks. what are you saying? you got skunked? he's trying to psych me out, you know. yeah, well, you know they always say: the best defense is a good offense. yeah. yeah, you know what? that's a great idea. i'm gonna call amita. (beeping) hey, we have messages. (dial tone) (dialing) yeah, don eppes, please. thought you were calling amita. i was, but i think i just figured out a way to help don catch his fugitive. i have all these computers networked for you. i have 50 phone numbers from ben ellis' phone records ready to go. that's awesome. here is the program with the algorithm that i constructed on amita's laptop. do you mind telling me what we're doing with it? oh, we're just gonna find ben ellis by identifying his call pattern. but he hasn't used his phone since he got away from david and colby. yeah, doesn't mean he hasn't been making any calls. oh, like if he borrowed a phone or used a pay phone? yeah. and this algorithm will help us identify his call pattern hidden amongst all the other calls made on that phone. all those other calls are like a symphony. ben's calling pattern is like a series of notes. if we know the notes, then we can identify his tune even if it's being played on another instrument. but we need to do that while listening to the entire symphony. so what do we do now? we just wait, and the program will find the new number calling ben's friends. i heard you're doing a lot of work on this poker tournament you're in. yeah. you really want to win it, huh? the winner gets a seat at the final table at next year's tournament. larry had that seat five years running. i just want to make sure it's there for him when he gets back. (beeping) did you get him? we got his phone. so whose house is this? turns out, ben has a cousin in l.a. and he's been using the cousin's phone? according to charlie's dialing pattern algorithm, yeah. nobody's home. ben could've taken off. he could be anywhere. or he could be coming up the block right now. suspect spotted approaching on foot. man (over radio): we have a visual. all right, move into position. let's take him. (tires screeching) (tires screeching) on the pavement. hands on the back of your head. so you gonna shoot me now? ben, i said on the pavement, hands on the back of your head! been a long time coming, right? you haven't changed a bit. i am not gonna ask you again. come on, david. come on! you want to get shot, i'm your guy. get down on the ground, and put your hands behind your head. if you have painful, swollen joints, i've been in your shoes. one day i'm on p of the world... the next i'm saying... i have this thing called psoriatic arthritis. i had some intense pain. it progressively got worse. my rheumatologist told me about enbrel. i'm surprised how quickly my symptoms have been managed. 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'cause that bag was in your locker. why would i kill those fighters? moves you up in the rankings. so you're gonna arrest kurt bordinay, 'cause it moves him up, too. or maybe bill tallridge. he was in prison. yeah. but we're not talking about either of those guys right now. come on, david. you know me. when have i ever backed down from a fight? thought you'd finally step up, take responsibility, be a man for once. a man? yeah? (chuckles) what do you know about being a man, david? this isn't going anywhere. that's it. leave. it's what you do. whoa, hey, hey, hey. colby: come on, man. david, easy. hey. hey. we don't have any coffee. yeah, what, you don't even drink coffee. so, now what's going on here? that dude has always made me crazy. you ever know anybody like that? well, you know charlie, right? look, you two were close at some point? once upon a time. so, i mean, is it possible? could he have done this? i don't know. i had a case. i put away a guy for ten years. the wrong guy. i mean a day doesn't go by, he doesn't pop into my head at some point. so you have your doubts, you better run 'em down. i'm all in. okay, i'll call. i got 'em, charlie. aces and jacks. (sighs) whatever. charlie, you gotta, you gotta remember you can't play percentages. remember when millie beat me at chess? yeah, she figured out that you had a tell, right? right. she played the player, not the game. you think novich has a tell? everyone has a tell, charlie. i don't. yes, you do. yeah, what's my tell? i'm not telling you. all right, what do you say we knock off this practice? no. no, no, no. he skunked my office. i'm taking him down. five more hands. that's my deal. (sighs) so, ben isn't the only suspect. no, just the best one we have at the moment. say he is telling the truth, all right. that would mean the traces found on his lock on his gym bag had to be a plant. where are you going with this? i'm thinking a guy's gym bag has got to have some kind of dna on it, right? it should. did you check the bag? i had no reason to. can you get me a sample? from ben. for comparison. whoa, you're really serious about this. is this still an lapd case? technically, it is. but we have ben in our lockup. (sighs) can't be easy having to arrest a friend. you okay? (sighs) i wasn't really ready for old home week, you know. hmm. just when you think you've gotten away. what's that mean? south el paso isn't the bronx, but i had to work pretty hard to get out of there. i guess you don't ever really get all that past behind you, huh? hmm-mm. thanks for the help. alston: bill tallridge will fight ken bainsworth in the qualifier. and we all know who'll be waiting for the winner... ladies and gentlemen, the champ, tino alva. (cheering and applause) so they just announced, uh, munson's replacement.