>> i think the lord had some intervention in this and put us down the right path. so, that's just my little evangelizing to you, for what it's worth. late at night, a man stopped his car on a residential street. within seconds, he was dead. what did he see? and why did he stop? an asthma inhaler found nearby and tiny acrylic fibers answered those questions when there were no eyewitnesses who could. six gunshots fired in rapid succession shattered the early morning calm of rockford, illinois.

[ gunshots ] [ phone ringing ] >> 911. >> yeah, i just wanted to call and report that somebody fired gunshots over at the auburn manor. >> police responded to the area, where they saw a car sitting in the middle of the roadway. >> it was a maroon chrysler. the lights were on. the car was still running. behind the wheel was a middle-aged man who had been shot repeatedly in the head and chest. the car was still in reverse, an indication the man saw something, stopped, then drove backwards to investigate. >> it was apparent from his position in the car and the seatbelt on that he had no time to react to the force that was used against him. >> he was dead before he could put the car in park. when police ran the license plate, they got some shocking information. >> the car had been registered to kevin rice and then did a double-take and realized, my

god, it's kevin. >> kevin rice was one of their own, a rockford police officer, a 14-year veteran with a spotless record. theo glover was his partner. >> i got a call from our commander, and he says, "yeah, kevin has been shot." so, i said, okay, i'm getting ready. where are you? i'm going to get dressed and be there, and he stopped. he said, theo, he said, kevin's dead. at that point, you know, i sort of -- >> the scene was strangely quiet. officers were kind of huddled together. some were grief-stricken, some were just silently assessing the evidence. >> i remember one officer, he was just crying the whole time while he was trying to find evidence in the grass. and he was just like, well, you

know, what else was i going to do? you know, our job now is to solve a crime that had just been committed. >> 38-year-old kevin rice was the father of three children. the youngest was only 2 months old. he and his wife, ardine, had been married for 15 years. >> a day doesn't go by when i don't wake up in the morning and think about him and i don't go to bed at night thinking about him. you know? little kevin is always asking, when is my daddy going to come back from heaven? >> ardine rice told police that kevin got a phone call just after midnight. it was from the man who was laying carpet in their new house, the one they were moving into the very next morning. >> apparently, there was a problem with the carpet. i don't know what the problem was. so kevin left to go over to the new house to check out what the problem was. >> the carpet-layer told police kevin stopped by, told them what

he wanted done, and left. >> he was gone for about an hour. and when he was driving down the street where he was staying at the time, that's when he encountered his attackers. >> shell casings at the scene indicated he had been shot with a .380-caliber weapon. the witness reported seeing a man in a dark hooded sweatshirt running away from the area. police had to consider the possibility that the phone call from the carpet-layer might have been a setup. >> pretty short order. there was a grim determination on the part of the officers to go about the business of finding out who had done this to kevin. . new skin is revealed in only 5 days. without drastic measures. stunningly youthful. award-winning skin. never settle for anything less.

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[ bagpipes playing ] ♪ thousands of residents in rockford, illinois, turned out for the funeral service of detective kevin rice, the city's first slain police officer in 20 years. >> it was really something

special to see, the hundreds of police cars, thousands of people lined the streets, and it was quite a tribute. but we also realized why they were doing this tribute. because kevin was shot and killed trying to protect his community. >> kevin was a servant. he was a servant to god, to his family, to the department, to the city. >> it was just so unbelievable that so many people could come out for my husband and acknowledged what a good person he was. ♪ no matter what's going on ♪ you make it all right >> it was just a hard thing to cope with.

so, try to stay strong and -- but his memory stays alive in my heart. >> once kevin was laid to rest, his fellow officers went to work to find his killer. >> there was three goals here -- identify who killed kevin rice, arrest him, and convict him. >> since kevin rice spent the last seven years on the force investigating crimes that involved gang activity, this was a potential lead. >> my first thought was maybe it was some type of gang-banger who was out there trying to, you know, become a leader type of thing. >> people don't enjoy having police officers interfere with their criminal activity. if they want to sell drugs or gang-bang, they just don't take too kindly to that, so you just never know what someone might do. >> detectives went through prison records to see if anyone kevin arrested had been recently released. meanwhile, in a search of the crime scene, police found some potential clues. in a nearby backyard, they came across a key ring with two keys on it. a few feet away was an asthma inhaler. >> we now had another piece to the puzzle. and we were becoming more excited about, you know, we were

really on to something here. maybe this is going to lead us in a direction that we really needed to go. >> these items were dusted for prints, but none were found. in an odd turn of events, police recognized the keys. they were from the auburn manor apartments located about two blocks from the shooting. >> because of so many problems that were there, the management at auburn manor had given us a set of keys, and if we needed to respond to that building, we would be able to open the outer doors to let ourselves in. >> next to the apartment building, police noticed a dark blue hooded sweatshirt on the ground. >> we knew that the witness who was awakened by the gunshots saw the figure wearing a dark-colored hooded sweatshirt. and this was abandoned fairly

close. so certainly it was a good possibility that it might be involved. >> the sweatshirt was given to forensic analyst mary wong. since the killer used a .38-caliber handgun, there was the potential of gunshot residue on the sleeves. >> when a weapon is discharged, a cloud of gas is formed and then these particles are then deposited on any surface in the vicinity of the discharge. >> wong processed the sleeves and cuffs with a stub sampler, an aluminum disk with a carbon tape adhesive surface. the sample was bombarded with electrons, and the x-rays revealed three chemical elements -- lead, antimony and barium. >> if those three elements are present, then that leads me to believe that that particle is actually a primal gunshot residue particle.

>> this meant kevin rice's killer was wearing this sweatshirt. was it possible that the killer lived in the auburn manor apartments? >> the decision was made by the supervisors to send those keys out with teams of detectiveso see, or at least rule out, if those keys went to any of the apartment buildings. >> rockford police. >> investigators tried the keys in dozens of apartment doors, a tedious, time-consuming process, with no success. >> the apartment complex, i think it's four or five buildings or six buildings, you know, there's a lot of apartments. that's why they set out with four sets of keys and teams of detectives. >> they were beginning to wonder whether this was a dead end until they got to the bottom floor and finally got a hit. >> they were surprised, you

know, to the point they were saying, oh, my god, you know, this key works at this particular apartment here. >> the man inside the apartment was 46-year-old calvin powell, and he was well known to police. >> he's a colorful character. he's got several minor arrests, i believe there are some felonies for drugs or for, you know, property crimes. >> powell insisted he had nothing to do with rice's murder, but he could offer no alibi. he told investigators that 19-year-old william buck sometimes slept in his apartment and said that buck owned a weapon. >> what he told us was that in the past, buck had assaulted him with a .380-caliber semiautomatic handgun. [ gunshots ] we knew that was the caliber or size of the weapon that was used to shoot and kill kevin rice. >> and there was another coincidence. the asthma inhaler found near the crime scene was traced by its lot number to william buck's

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19-year-old william buck was now the prime suspect in detective kevin rice's murder. a background check revealed some chilling information. he had just been released from a juvenile detention center after serving six years for a murder he committed when he was 12 years old. >> there was no rhyme or reason to that killing. he was outside a tavern on the west side of rockford, saw this man at the curb drinking a beer, and went up to him and shot him and then fled the scene. >> people were wondering, you know, how is it that he could have been released? you know, why did this happen? >> when questioned by police, william buck denied any involvement in officer rice's murder. he implicated his friend, 19-year-old vincent holmes, as

the man who killed kevin rice. >> vincent holmes, he was a street kid. late teens. he was friends with william buck, hung out at the auburn manor apartment complex. really had a flat affect, borderline functioning intellectually. just a street kid with really no purpose in life. >> not surprisingly, when holmes was questioned, he pointed the finger at william buck. this created a problem. could forensics prove who pulled the trigger? several residents at the auburn manor apartments saw william buck and vincent holmes together on the night of the murder. they were outside the apartment drinking. the residents were able to identify the clothes each man was wearing. and with a search warrant, that clothing was retrieved from their respective apartments and

sent to forensic analyst mary wong. she conducted the same tests she used on the hooded sweatshirt. no gunshot residue was found on either man's clothing. so the hooded sweatshirt and the shirts from both men were sent to skip palenik, one of the country's premier experts in trace evidence analysis. >> in terms of physical evidence, microscopic evidence, this was the only evidence available. and so it assumed great importance in the case as the investigation proceeded. >> his job was to determine which man was wearing the sweatshirt. >> whenever two objects come into contact, there's always a transfer of material. anybody who's ever worn a new sweatshirt knows, especially if you take a dark sweatshirt and put on a white shirt, for example, it sheds horribly. you get fibers all over the place. >> under a microscope palenik

discovered that the sweatshirt was made up entirely of acrylic fibers. palenik could find no acrylic fibers on vincent holmes' shirt, but he did find some on william buck's shirt. but were these fibers from the sweatshirt? most clothing isn't dyed with just one color. usually it takes a combination of colored dyes to get just the right shade. to identify the chemical makeup of the blue fibers, palenik placed them on a plate of silica gel and dipped them into a solvent. >> the solvent mixture travels its way up the plate. it starts to separate the dyes into individual components. sort of a gratifying moment as a scientist to see each dye separating out. >> the fibers were unusual. most contain three or four color mixtures.

these fibers contained seven. and the colors and the composition were identical in both samples. this meant the blue acrylic fibers on william buck's shirt came from the killer's hooded sweatshirt. >> he was wearing either that shirt, or just by pure dumb luck, he was wearing an absolutely identical shirt to that one. >> finally, investigators swabbed around the neck of the sweatshirt and found microscopic skin cells, possibly from sweat. the dna profile of those cells matched buck's genetic profile. william buck was arrested and charged with first-degree murder. and it was william buck's accomplice, vincent holmes, who revealed why kevin rice stopped his car on that fatal night. on the night he was murdered, detective kevin rice was preparing to move into a beautiful, new house, one he had built largely by himself. !

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>> this was really, like, his and he was really looking forward to building it himself.

>> the furniture was to be moved in the following morning. the carpet was being laid that night. >> he got a call from a friend and there was apparently something wrong with the measurements. so he jumped in his car to see what the problem was. >> kevin went to help fix the problem, and then went home. apparently he and buck was breaking into a car. william buck was fresh out of prison and had no inattention of going back. buck fired six shots, five hit kevin rice. gunshot residue contaminated

buck's sweatshirt. as he was running from the scene he dropped his keys and his asthma medicine. the gunshot residue on the sweatshirt, the fiber transfer on to his thirty, were clear proof ryan buck fired the gun. >> it is a blessing from god that he was running and he happened to drop something out of his pocket that he didn't realize he dropped. >> we felt very strongly about the evidence, just how they were able to tie everything together. just something as simple as a hair fiber or a drop of sweat on a tag of the sweatshirt. it was very important part of

the entire case. >> william buck was convicted of killing a police officer and sentenced to 68 years in prison. >> in this day and anyone of tv shows like "csi" jurors have come to expect forensic evidence. this would have satisfied any juror who sought that before they could reach a guilty verdict. >> in a case with no eyewitnesss, tiny acrylic fibers and a asthma inhaler told investigators all they needed to know. >> there was so much evidence they found on that sweatshirt. i marvel at how everything was just able to be put back together. >> we're no in the position of taking sides in the case. the only side we're on is the

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