>> anytime i can bring a case to a positive conclusion and provide a service to one of my fellow citizens that i've done my job, i feel good. >>> a serial killer was loose and investigator his no leads until an alert investigator saw something no one else had seen. a possible fingerprint on the victim's skin. the problem was how to collect it. >>> texas city, texas is one of the largest oil refinery sites in america. the oil business is labor intensive which poses its own unique set of problems. >> we have a large population of contract workers that come in from out of state and all over the country and come in to work at the refinery.