Originally posted by erobitha
View Post
Yes, Ted Bundy moved to new locations, set up a new residence, and so developed new home ranges and crime zones in his new territory. Sort of a "mobile marauder" if you look at his entire series. But, even when he did move, he often gravitated to university campuses, as he was comfortable around them, making them a sort of home away from home. While the majority tend to be of the marauder sort, there are some who would be considered commuters. Colin Ireland would travel quite far to go to a gay club where he would meet his victims and then kill them at their homes. He didn't live in the area, and his only reason for going there was to find victims. So, there was no real overlap between his home range and his crime range, or the main anchor point for his offenses (the gay club). As I recall, a geographical profile of where his victims were found does include the club in zone 1 (Dragnet, no buffer zone), zone 2 (Rigel; includes a buffer zone) or zone 3 (my own routines; each zone comprises 2.5% of the total crime zone area, so the analysis narrows the search space down to 2.5% to 7.5% of the total area, pending on which routines you go with; note, over a set of cases, the three routines do really similarly, so while Dragnet does best with this case, in another case it might be Rigel, or mine, etc), so even though he's commuting in, and otherwise has no association with the area, the club where he was finding victims (and so where his victims were going to from their homes) ends up being highlighted by the analysis). Hence, I try to point out that the anchor points are not always the residence, and if the offender is one of the rare commuters, then the analysis can still highlight areas of interest. But, it's just telling you "where to look", the real police work still has to be done to find actual evidence. This is not a substitute for actual evidence.
- Jeff
Comment