Seems pretty clear at this point Law Enforcement has their suspect and are watching them, while they obtain the evidence of the suspect's movements in the day before and after the murders. Hence the request for video/photos. LE doesn't just trace the victims' movements. They do the same for suspects. LE are building a case, piece by piece, and will only make the arrest once the entire case is made and signed off by the DA. This will be a high profile case, and LE won't want a defense Attorney finding evidence afterward that LE should have found prior. Hence the request for the Public's help with photos/videos. We should expect arrest within 2 weeks.
I know Moscow PD is requesting "all outside surveillance video taken from 3 a.m. to 6 a.m. on Sunday, November 13th" (per
press release) in the area of the murders, but I haven't seen/read anything about LE requesting the public send in footage from the days before and after the murders –– do you have a source for this or is it speculation?
Also, even if true, I don't think LE requesting surveillance footage from a wider time frame necessarily means they have a POI. I can think of numerous unsolved cases with no (at least publicly identified) suspect where the police requested video surveillance footage. For example, after Katie Janness and her dog, Bowie, were stabbed to death inside Atlanta's Piedmont Park in July 2021, detectives
requested video surveillance from the surrounding area for a 3 hour time window. After more than a year, no suspects have been identified and the case remains unsolved. Stephen and Wende Reid were found shot dead on a hiking trail in April 2022, and
although the police had a POI seen purchasing camping gear on surveillance footage who matched a sketch from a witness, they could not immediately identify the man in the footage. Logan Clegg, 26, was arrested and charged with their murders in late October 2022.
Point being, surveillance footage isn't a magic bullet -- even when police are sure they have their suspect on video, they may not be able to identify the suspect because the footage is too grainy, the suspect is too far from the camera to make out distinguishing features, etc. Personally, I don't believe LE has a clear suspect in this case. Perhaps they have vague suspicions about a person(s), but IMO they don't have enough evidence (as of yet) to elevate them from 'possible POI' to 'POI/suspect.'