10ofRods
Verified Anthropologist
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I thought the forensic testing was being done out of a ISPFS lab!?
'Scientists from Idaho State Police Forensic Services have been "working 24/7 in the lab" to try to get results as quickly as possible, Snell previously said.
Idaho police say first crime lab results received after student murders
The first round of forensic testing is usually the separation of gathered evidence into various categories (primarily organic vs inorganic) in preparation for DNA tests.
Incomplete DNA samples (possibly including swabs from door jambs, door knobs, etc - although I think this killer wore gloves) take much longer to identify, separate, process, study and, if possible, reunite into a more complete/usable DNA profile.
I have posted the times for expedited DNA study in Idaho (ISP labs) several times (45-60 days - RUSH). And the first process (initial forensic sample testing) is also 45-60 days.
Naturally, if you have an actual body and blood for the body, a mobile DNA unit can process such a clearcut sample in a short period of time (less than an hour if they want to). However, all that does is give you each of victims' DNA maps. This is necessary to look for stranger DNA, but I believe that there was tons of non-victim DNA in that house (DNA persists a very long time, withstands hot water, cleaning agents, even bleach, etc, etc)
I do not think DNA is going to help much in solving this crime unless they already have a suspect or suspects in mind. And even then, it will just be internal confirmation of the rest of the investigation, because unless the killer(s) spit on the victims or cut themselves and left blood drops, their skin cell/partial DNA will be tiny and even if admixed with victim blood, there's probably also *other* non-victim trace DNA in the same blood samples (from the floor).
DNA persists on people's clothing. It gets transferred.
DNA from workers in China shows up transferred to other clothing by washing machines.
If the perp has ever been in the house (and since the house was unsupervised and caught on LE camera being unsupervised with non-residents galore inside the house on Sept 1 - and probably Sept 2 as well), they can say there is an innocent reason for their DNA to be among the profiles of several other profiles.
And, btw, except for *very* broad pictures painted (mostly) by Y chromosome analysis, there is no way to use a partial sample (or even a full sample) to fully assess "race" (whatever that is), but just general ancestry. Fun fact: Australian aborigines, isolated from any other continent for 40,000 years, are closest in genome to ethnic Chinese - who appeared in China around 6000 years ago). Does this mean Aborigines colonized China? Nope. There were hundreds of tribal groups bearing the same markers all over Asia at the time, many of the groups now extinct/absorbed by other populations. And so, the "ethnic" markers of the Chinese cannot distinguish a Chinese person from many Australian aborigines or some other Melanesians.
OTOH, LE may wait for the results to get back and reassess. If they learn (as I'm sure they are aware) that the stranger DNA results are entirely inconclusive and would require vast genetic genealogy (with weak DNA reconstructions), they may strategize and file an arrest affidavit without even using the DNA - or, if there's weak evidence about one person, they'd add that in last and not emphasize it.
I think they have a good idea about who this *might* be, and this person has to be handled very carefully. I would wager more than my lunch money that said person is living on the down-low right now (my lunch money is about $1). If I had to guess, I'd say he's still on campus. I have theories about his lifestyle, but they are based only on the examples of now-incarcerated students who have acted out on various campuses, mostly in my own neck of the woods. I believe LE is keeping an eye on this person or persons.