His employment and residence, however, will probably keep him away from the outdoors. He is most likely employed in an office environment somewhere where he daydreams out the window. His residence might be in an urban area, possibly in a modern apartment complex. Given the racial mixture of the victims, it is difficult to determine the race of the subject. Using the hypothesis that the first victim's race is important, we can say that since the first victim was white, the suspect is also probably white.
Age is also difficult to determine.
There is no sign of burnout in the serial pattern, so this offender will likely continue to kill until he reaches the age of, say, 40. He probably enjoys talking to the prostitutes about the rash of homicides, their safety, and may have even offered to drive one or more out to the area where the crimes happened. In all likelihood, he has revisited the scene himself to see how far the police have gotten in their investigation. He might respond to a provocation strategy where police offer a community meeting over the problem of prostitution and safety of prostitutes. He has also probably taken souvenirs such as jewelry from his victims, and will likely be giving them to his girlfriend, wife, mother, or dating partners.