I would assume that LE would collect DNA samples after the finding of "unknown remains." Where I live (California) the State sends in samples of the decedent's DNA - but does not compel in any way that the relatives of a missing person give DNA samples.
So it depends. And CA is a progressive state that wants to use DNA to solve crimes.
Did the family give their DNA samples in a legally admissible way? It seems like a stretch to me. So even if the family rapidly came forward with volunteer DNA samples, I'm not sure that the chain of custody and the results could be made known by the State (it's evidence).
There are so many technicalities here. First would be running the dead person's DNA to see if it matched DNA already in the system. It probably would not. Then what? Ask the families to submit DNA samples (if both parents agree, that's optimal). They probably want to do submit - but have to do it in a manner that the Court accepts.
There might be a crime involved here. Rules of the local jurisdiction ought to be followed.
A week is not very long for all of this - many coroners have a backlog. Further. there's the oncoming hurricane and those issues (Corpus Christi appears to be well within the cone).
CORPUS CHRISTI, TX - The City of Corpus Christi has received the latest update on Hurricane Beryl from the National Weather Service. Recent trajectory models have shown that Hurricane Beryl has shifted northward, increasing the likelihood of impact on...
news.cctexas.com
I live in CA where there are generally no hurricanes or typhoons. It takes 3-4 weeks for labs to run all the DNA tests and cross-tests and secondary tests.
Because if the lab is okayed by LE it's because they are very very careful.
IMO.