palenik could find no acrylic fibers on holmes' shirt, but he did on william buck's shirt.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 usual 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

chief executive of acrylic tank manufacturing and the author of the book "tanked."ime for a mystery guest. my producers have been kind enough to provide us with a few clues. by mr. guest is bringing back a new york city tradition. my mystery guest is working in a very central location. finally, if my mystery guest had lived in the late 1800s, he would be seen sheep. let's bring him out. thank you for being here. it says a central location. let me guess -- does this have anything to do with central park? >> yes. >> the sheep in central park? >> yes. dodo you have anything to with the parks department or the park service? no. anything to do with the hospitality industry? >> yes. >> do you have anything to do with the tavern on the green? >> yes. >> are you one of the owners? yes. >> are you from philadelphia? >> yeah. >> you spent about $20 million on this? i am trying to think of your name. it is going to come to me. do a change the menu at the tavern at the green, right? >> local food. m> you are -- are you ji somebody? jim schiola? >> almost. did you really get tha

the acrylic was seven inches thick on the front panel, the tunnels were 5.5 inches thick.d to be thermoformed. any size, anywhere in the world. >> would you build these, las vegas? >> tank like this you would build on site. >> what about the cost of something like this? >> the church tank was $4.5 million. it took 2.5 years to build it . r >> have you ever had any problems with the tank, that the fish don't like it or that the owner is not taking care of it the way they should? have a marine biologist of lives on staff, they have a quarantines system so all the fish are put into quarantines system to make sure they are happy and healthy and then they are acclimated and put into the aquarium. >> i want to turn your attention to it a tank you did for hollywood comedian, tracy morgan, was recently involved in an automobile crash. what you describe what you just did for him? >> he is a one-of-a-kind guy and we love him. we have done a few tanks for him. this was a jaws themed aquarium. we had to build this in pieces and bring it down to his basement. it was 20 feet long, five

if it's a acrylic, it will be a totally different pattern. >> samples from the van and from dana's clothewere both made from a compound known as nylon 66. to take the comparison one step further, analysts turned to a micro-spectrophotometer. >> that was basically a microscope that measures color. we pass light through a ample and it measures how much light of that is absorbed by our sample, and that actually tells us basically what color. it gives us a spectra of the color representation. >> the colors in both samples were identical. the same set of tests were conducted on rope in allen's truck and the rope fibers on dana's clothing. again, they were virtually identical. >> when we get the phone call from the lab that those fibers match, we know we have randy allen. we are expecting at that point he's going to plead. >> in randy's home, police found pieces of lumber similar to pieces that would make a wooden box. police asked randy if he would put the pieces back together. surprisingly, randy agreed. while doing so, he made an incriminating statement. >> he said almost to himself, well, s

. >> i will say does examine inco couple variations and foam and acrylic. have to put this into the context of our lives. at our age at this point in the game we may not be interested in this. turn back the clock to when i was 17, 18, 19 -- >> 21, 22? >> i mean 2 21, 22, 23, give me one for every room in the house. >> they are looking for money to mass produce the bro bong. so far they have $100. >> isn't the height weird. they're on three on their knees sucking a pipe. it's weird. >> i'm going to agree. >> down on your knees with your bros all together. >> you're making it weird. >> it's the music video from a guy out to inspire. >> don't worry about the little things in life. >> see his inspirational story next "right this minute." and still to come -- opening the door for others is a nice gesture. >> but, what if you do it awkwardly? >> i got it all for you guys. >> see how some pranksters manage to make it weird. >> there you go, my lady. >> thank you. >> the big floating thing that will make you squirm. >> that's awful. >>> closed captioning provided b

this is not acrylics. you know, you got to let this dry, at least that's how i do it.oo much of a buildup on the paint. because i want to control it. >> darrell mayman, serving 40 years for multiple counts of burglary and fraud, had a different hobby. >> i'm making a birdhouse right now. i also do chess sets, when i was in florida, i worked in hobby craft shop and we had saws and band saws and everything that we could just cut regular wood with. here we don't. here we got popsicle sticks. and i buy them 1,000 at a time. then i cut the ends off. good old elmer's glue. and this is my little saw, which happens to be the bottom of a pringle's can. it's not sharp. it won't cut a person, but it will cut these sticks just like a little saw. that's the only cool i use to make these. you can see why it takes eight to nine months to make one. >> why? >> just to pass time, basically. >> it's a farmhouse right here. a rough draft. okay? a little dimension to it so i know where i'm at. art is my sanity, and my salvation. i mean that's what keep me stable. >> i just come up with all

but it is acrylic. get them in their letters, create some fun stuff. >> how did you do that?c, easy, really is. >> okay, then show us these things? >> real easy. finds frames, these all three of these actually came from eye key, a cheap, put stuff in it, but tea in there, some little golf balls in this one, little ones, fun, put in the office, put in the little man cave, what whatever it is. >> so stop. chris murphy, what do you think about these, the frames and the picture things? >> the first one with the letters for the names is really cool. specially, if you have it on your desk? >> okay. >> mr. jerrick, are you feeling any of this? >> i would agree with. that will now, i have received that little box thing with all of my little trinkets in it, my favorite thing, from my daughter, so i like that one too. >> so we move on. this is really cool. >> this you can use for anything. what's these things? >> printable, if you google pribble ability, or go onto paintress. i'm not graphic designer, no the good, but couple of websites called canva. com. and pic monkey. com. you can c

. >> what's great about this sub is it's small but because it's this acrylic hull, you don't feel enclosednd you can see everything in the ocean, in front, above, and behind. >> these vehicles have an endurance of 8 to 10 hours. >> the sub is all operated with this simple joystick. and it takes only 20 hours of training, and you, too, can operate your own sub. but don't expect to go full speed ahead when exploring under the sea. >> typically, you're only traveling at a speed of maybe half a knot to a knot. >> boy, i thought we had views in new york. this is absolutely outrageous. i don't think i've ever seen anything like this. >> this is a rare sight -- new york super broker dolly lenz is mega-home hunting in san francisco, only this time, she's not looking for a wealthy client. she's shopping for herself. >> yeah, the owner actually carved the house -- carved the landscape, blew bedrock out to get this house. >> luxury brokers barbara kline and joel goodrich are showing her a very unusual home in a wealthy community called tiburon. >> tiburon, which means "shark," and it's, like, the pre

. >> i'm chewing on acrylic fingernails! >> let me see.t even feel like i was at work that day. i mean, here's this girl dressed head to toe in this disco outfit, ready to tie the knot. where are your shoes? >> my shoes are over here. i haven't been this nervous since like -- we won't even say. i'm freaking nervous. >> she was a mile a minute. >> does my hair look okay? >> looks good. she was nervous and excited, and you know, not very different from a bride-to-be on the outside. >> are you sure i look okay? >> you look beautiful. >> jodie pulled herself together in time to meet the pastor who had arrived to perform the ceremony. >> there was actually no relationship between jodie and the pastor. >> jodie, how long have you known rodney? >> ronnie? >> ronnie. >> i have known him for many years, a long time. >> before he came here? >> yes. >> were you in love with him then? >> i wouldn't say in love with him, but i loved him. >> this is not just a contract you're signing. >> i understand that. it's a covenant. >> it is a covenant you're mak

this is not acrylics. you have to let this dry. that's how i do it. i don't try to put too much of a buildup on the paint because i want to control it. creativity, i got you, no problem. >> as one of the prison's more senior residents, robbins also sees himself as a bit of a father figure to some of the new inmates, as austin knight will soon discover. >> knight? >> yeah? >> ready to go? >> after completing the classification process, it's time for knight's transfer to general population. >> got everything? >> i'm going to "d." i wanted to get out of there, intake as soon as possible. be able to get some air now. i'm a little nervous. but other than that, it's more excitement than anything. more relief. i'm glad to be out of just that room all day. >> there you go. right there. they'll get you hooked up with your property and a mattress and see if we can get you some stuff to clean in there. >> okay. >> all right? >> yes. >> finally, knight is left alone to begin his 70-year sentence at indiana state. >> i thought the room would be a little bit bigger

an asthma inhaler found nearby and tiny acrylic fibers answered those questions when there were no eyewitnesses