Once LE is involved, almost everything related to their investigation is subject to disclosure under FOIA laws. Personal medical records aren't typically included (may vary by state law), but I believe New York's statute doesn't have a lot of other exemptions.
If someone's personal business involves the government in any way, then, yes, we pretty much do have a right to know. Including third parties who are incidental to the investigation... the third party info disclosed in the Seivers case is extremely personal in nature.
Whether any news agencies, or anyone else, chooses to file a FOIA request is up to them. If no one asks for the info, then likely only a minimal amount will be disclosed.
Moo, IANAL, etc.
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