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[ dennis ] shop less, get more, hey, guys, listen up. i got nine separate gang shootings over the last two years, charlie thinks they are all related to rhimes' murder. related how? all the same shooter. the same shooter? don: that's right. walker: ten kills? i don't care how hard-core a gangbanger we're talking about, this guy would be a legend. he's right. plus, the shootings are spread throughout completely different gang territories, exploiting totally different rivalries. trust me, if charlie's math says they're connected, the odds are they are connected, okay? i have three different files here. all three victims are different races. they also all have a different weapon. .25 cal.-- what's this, .44... that's a nine millimeter. yeah, same here. they're all different. that's why we need to look at this stuff fresh, right?

we need to run the prints again, the ballistics, anything we can, okay? hold on a second. you see something? megan: all three of these-- four, if you count rhimes-- are single homicides; the victim is isolated. yeah, this one is, too. how about these? same. yeah, here, too. yeah, this one as well. so? so, that doesn't happen by accident. megan: it might just be something about opportunity, or it might be part of a bigger plan. but either way, it supports charlie's theory that there's a single killer with a specific method of finding his victims. all right, let's check into this; let's go. professor fleinhardt. oh, agent reeves. hey, amita. hi. charlie. hey. wow, you have a lot of victim photos. charlie: lot of victims. charlie, don told me your theory, and, assuming you're right, i'm trying to figure out how the killer is finding his victims. and i don't have a behavioral model yet, but it seems that it has to be more than just opportunity. and i can tell you mathematically, yeah, it has to be. what does that mean? why? each of the murders started

an exceptionally long shooting chain. now, the average for a shooing chain is about 2.8 shootings, right? well, these are all much higher. look-- four, five, six, seven shootings, even. statistically, that wouldn't happen if he had chosen the victims at random. the chains would have conformed to the overall average. so, there is definitely a method to how he's choosing his victims. in other words, the killer's choosing his victims specifically to maximize retaliation. so he's trying to take out as many gang members as possible. but wouldn't that also endanger members of his own gang? i mean, they're surely going to be the target of the retaliation. you see, now you're making this rather large assumption. i mean, how do we know that the shooter is a gang member? david: a serial killer? megan: targeting gang members for the same reason other serial killers target prostitutes. because nobody really cares about the victims. exactly. and then they can go on killing for longer without anyone noticing. i mean, this guy's been out there for like two years. and if he hadn't killed rhimes, we still wouldn't know who he is. ( cell phone rings ) charlie says he's been maximizing retaliations.

he'd have to know a lot about gangs. i mean, about their structure, how they function. you're right, that's how he knows who to go after. all right, yeah. yeah, i got you. that was ballistics. one of the slugs we've been testing hit on the computer. turns out the same gun that fired it was used in a liquor store robbery-homicide. well, let's run down the guy who owns the gun-- find our shooter. the problem is, this gun's not even supposed to exist anymore. what does that mean? it was turned in to one of those buy-back programs three years ago-- turn in your gun, get a free gift at christmastime. and those guns are supposed to be destroyed? yeah, they're supposed to be, but obviously this one wasn't. you got this? thank you. yep, got it. ( hip-hop blaring ) yo, hoover park!

( tires squealing ) ( helicopter circling ) ( siren wailing ) this is part of the shooting chain related to anton rhimes' murder. 23rd street retaliated against hoover park this afternoon. tonight, hoover park strikes back. it's probably not over, either. david: no. ah, man, that's anthony, huh? been better off if you'd locked him up. hey, david, let me talk to you for a second. did some checking into that gun, the one that went missing from the buy-back program. yeah... dug up some paperwork. take a look at this. the signature on the bottom of that receipt.

"lieutenant gary walker." could be completely innocent, but at some point or another, the gun that killed rhimes passed through walker's hands. ( indistinct radio communication ) so to save some money, i trained mathis team of guinea pigs to brrow this tiny boat. guinea pig: row...row. they generate electricity, which lets me surf the web all day. guinea pig: row...row. took me 6 months to train each one, 8 months to get the guinea pig: row...row. little chubby one to yell row! guinea pig: row...row. that's kind of strange. guinea pig: row...row. such a simple word... row. anncr: there's an easier way to save. get online. go to geico.com. get a quote. 15 minutes could save you 15% or more on car insurance. i don't want healthy skin for a day. i want healthy skin for life. [ female announcer ] don't just moisturize, improve the health of your skin with aveeno daily moisturizing lotion. the natural oatmeal formula goes beyond 24-hour moisture. it's clinically proven to improve your skin's health in one day,

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try nourish plus haircare. i don't think i like what you're suggesting. well, it's not a question of whether you like it, because your name is on the form, right? that's your name, it's not a forgery, so the investigation brings us to you; i'm sorry. my name's on about a thousand forms. i've been working the buy-back program in my division for six years.

collecting weapons that were supposed to be melted down. you know how many guns we take in off the street? how many lives we save because of it? then why don't you tell me how a gun that you signed for ends up back on the street in the hands of a killer. who the hell knows; security's not perfect at these things, a lot of people come through here. now, we probably took 50 guns off the street that day. if one of them slipped through, got back out, that's still 49 others that we took in. i don't care about them, because they're not in the hands of a murderer. oh come on, eppes, we're talking about a motivated individual out there killing. if it hadn't been this gun, it'd been another one, and you and i both know that. all right... colby: don? excuse me. the guys upstairs ran a full audit. more than a dozen guns from the buy-back program never made it to the furnace. ( scoffing laugh ) okay, then, just tell me how the program works. what is the exact chain of possession? there's usually maybe five or six drop-off locations: churches, community centers... david: community centers?

is there any way to check each weapon against the location it was turned in to? colby: well, just by the responsible police officer's signatures. and, it turns out, all these guns were signed for by you, lieutenant. david: which means they were all turned in at the same location. right. which is the 23rd street community center. you do see the obscene irony here, don't you, agent sinclair? we're one of the few places in the neighborhood that's really trying to do some good, and you're coming down on us. ms. rawlings, i am not coming down on you. the gun buy-back is a good program. that may be, but we still need to see those records. we need to know everyone who was working here the day the guns were collected. these are people who try to help out. people who contribute. do you have any idea how hard it's going to be to get volunteers if they can't lend a hand here without getting a visit from the fbi? ms. rawlings, i want those names and addresses. anyone who had access to those guns. i know you do background checks. what if i won't give them to you? we can get a court order

and make this public. and, i suppose, the community center could find itself liable to the victims' families if it came to that. i hope you're really proud of yourself. you're doing a whole lot to give back to this community. ten people had the opportunity to get their hands on the guns that were turned in at the 23rd street community center. those are the background checks they ran. well, we can probably rule out the priest, huh? these six here strike me as possibilities. they could have the necessary gang knowledge, and the ability to pull something like this off. all right, so we just need to find a way to connect one of them to the victims. specifically, the first victim. because with serial killers, the first victim almost always has significance. it's the first kill. it's a really big step. means it's personal, or someone close, accessible. so, victim number one is where we're looking to find our link. this is omar brice. he was shot outside of a party two years ago. all right. well, i'll take the family.

you want to pull his record, talk to his p.o.? i'll see what walker's gang unit has on him. has to be a link between him and one of our suspects. charlie: hey. are you still working? yeah, i just needed a break. where's dad? he's upstairs. he just got home from his date with, um... donna. oh, yeah? so? how'd it go? alan: fine. the date went fine. don: yeah? what'd you end up getting her? well, according to those london mathematicians, you should have sprung for the very expensive dinner, dad. nah, i disagree. i think women want something that'll last. something they can remember the night by, at least. that would be ideal. i'm afraid to ask. what did you get her? soap. soap. very expensive soap. yeah? how'd that go over? well, uh... honestly speaking, she wasn't wowed. i mean, she was very polite about it, but she, uh, wasn't, uh... wowed. ruined the whole date, didn't it? it didn't ruin the date. the date was fine.

you're home at 9:30. i didn't say it couldn't have been better. you look exhausted, you know that? i'm just killing myself trying to find a link between our suspects and his first victim. well, at least you have suspects. hey, don, why are you... why are you looking to link your suspects to the first victim? because when it comes to serial murders, there's always significance to the first victim. well, i understand that, but what i mean is why aren't you looking at the whole first chain? what do you mean? now, remember i compared the shooting chains to dominos? right? okay. so, let's say i'm the killer, and i have reason to want this gang member killed. we'll call him "bob." now, i could just shoot bob myself. the smarter move: assuming i know the gang structure well enough... instead of shooting bob, i shoot "tim," knowing that shooting tim will set off a chain that ultimately results... in the shooting of my real target, bob.

that is smart. you're never involved in the shooting of bob. so, since you don't have a motive for killing tim, then you're not a suspect there, either. check the whole first chain, your target's going to be in there. charlie, thanks. there was the explosion. and i remember just opening my eyes, and it got both of my legs. i had surgery after surgery, you know, "what's going to happen next?" the wounded warrior project said, "look, brother,

"everything's going to be okay. "three months from now "or four months from now, "a year from now, you'll be fine." i don't know if i would be as well adjusted as i am now if it wasn't for them. to learn more, call... or visit woundedwarriorproject.org.

what are we working on? first shooting chain. we only looked at the first link, omar brice. but what if brice wasn't the real target? what if the real target was someone further down the chain? that makes sense. at the time of brice's murder, lapd focused on three suspects. they're all hoover park gang members. they had all made threats against brice. carlos alvarez, jesse orosco, and peter mendez. i have the murder file on orosco and jesse right here. he was gunned down one week after the brice slaying. so orosco was victim number two in the shooting chain. yeah. wait a minute. where's the file on the community center volunteers? it's right over here. why? what do you got? this kid, orosco,

at the time ofhis murder, he was a suspect in another drive-by-- one that killed a 15-year-old kid named brian owens. kid's father john works at the community center. really? he was present at all the gun buy-backs. so this guy's son gets shot in a drive-by. he sets off a shooting chain that ends up killing the gangbanger that's responsible. only the killing didn't stop there. ( indistinct police radio transmission ) ( helicopter circling ) spotter says owens is inside alone. i tried calling, but he's not picking up. colby: the dude's armed for sure. talked to one of his neighbors. says he sees him out on his porch at night with a rifle. he's pretty sure it's an ak. plus all the guns he got from the buy-back program. what we need is to lure him near a window, give one of my snipers a clean shot. shoot first, ask questions later, right? lives are in danger here, agent sinclair-- lives of the people who live here. don, i met this guy.

let me see if i can talk to him. just give me a shot. maybe it doesn't end with a sniper's bullet. all right. david: john owens, can you hear me? it's agent sinclair. i helped you with the tables the other day at the community center. you remember? hold! hold! hold! calm down, john! calm down! easy. lower that rifle. get a man in position. i got nothing to say to you, sinclair. okay, maybe you could just listen. i know about your son.

i know what happened to him. he was 15 years old. fifteen. only i couldn't protect him. i know. john, it should have never happened. but what you're doing, more people are gonna get hurt. it's too late for all that. what about the kids? remember the ones you said could still be saved? what about them, john? they still need you. i'm going to jail; we both know that. john, listen to me. you put that gun down, and you come on out here. nobody else has to get hurt today, okay? john.

david: john! talk to me. john, keep talking to me, man. i'm right here! john! hey, john! john, talk to me! david! you come back out here, john! get down! come back to the window! ( gunshot ) roll call.

you okay? he shot himself. i heard. how's david? i sent him home. colby's with him. your man, sinclair, did himself proud today. he's got nothing to feel bad about. we all went home safe, and... that's about as much as you can ask. i was gonna go see rhimes' wife and tell her what happened.

i'll see you tomorrow. hello! alan: yeah, we're coming down. yeah? where are you going? charlie: he's got yet another date. yeah? with-- what's her name-- donna? i thought that wasn't going to work out. well, your brother came to my rescue. charlie: i bought gift number two on that courtship study list: theater tickets. according to those matheticians, you know the british ones, this is a sure thing. well, maybe not a sure thing, but it's certainly better than, you know, soap. i don't need math to figure that out. uh, thanks for your insights, my little don juan. so what are you up to tonight, donny? well, i thought i was going to hang with you boys, but... charlie: oh, man, i wish you'd called. i'm going to amita's for dinner. larry's going to be there-- why don't you join us? i think i'll just grab something to eat here and head home. yeah? all right. you sure? yeah, go ahead, have fun. i got stuff to do, anyway. have a good time. ( mumbling ): all right, all right. ( door shuts )

♪ david: say someone steps right up to you, all up in your grill. what are you going to do? i know what you want to do, but what are you gonna do? the first thing you're gonna do is think. what i'm trying to get you guys to see is there are other ways to keep your respect than just resorting to violence. you got more options than that. all right, y'all give me second? hey, how you doing?

my assistant told me someone was going take over for john tonight. i didn't expect it was gonna be you. yeah, um... conflict resolution. class like that really helped me out when i was a kid, so... oh, yeah? yeah, you know, i was a bit of a hard-ass. was? ( chuckles ): you really do like to fight. ( laughs ) maybe you want to sit in. you know, you could learn some good ways to work things out. and i won't even call on you. ( laughs ) i'll let you sit there and just watch me. if you want to. let them know when you're done, so they can turn out the lights when you leave. yes, ma'am. and i assume an fbi agent like you can figure out how to find my number.

what are y'all looking at? all right, where were we? talking about options-- options to violence, right? ♪ it will be all right ♪ ♪ and you will feel nothing less ♪ ♪ it will be all right ♪ ♪ just give yourself a chance ♪ ♪ it will be all right ♪ ♪ and maybe love will save you... ♪ captioning sponsored by cbs and paramount network television captioned by media access group at wgbh access.wgbh.org

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