A few thoughts :

Netflix has an excellent five-part documentary series called "Don't Fuck WIth Cats" about someone who did this years ago, and then eventually murdered a human on camera after many internet slueths trying to get law enforcement to cooperate : https://inews.co.uk/culture/television/luka-magnotta-dont-fuck-with-cats-netflix-true-crime-documentary-1345877

There is a subreddit with a large active community of people, who are now currently discussing this exact perpetrator you mention : https://www.reddit.com/r/DontFuckWithCats/

My initial inclination would be to track down the law enforcement people involved in that prior investigation, if you can. Hope others can help.

On Sat, May 2, 2020 at 3:13 PM Anne P. Mitchell, Esq. <amitchell@isipp.com> wrote:
There is a woman torturing animals on Omegle, she is advertising it on her Instagram account.  Need to get this in front of the right people to have her traced and shut down.

Please let me know if you can provide a contact for either org.

Anne

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Anne P. Mitchell, Attorney at Law
Dean of Cyberlaw & Cybersecurity, Lincoln Law School
Advisor, Colorado Innovation Response Team Task Force
CEO/President, SuretyMail Email Reputation Certification
Policy Drafting and Review for Businesses
Author: Section 6 of the CAN-SPAM Act of 2003 (the Federal anti-spam law)
Legislative Consultant, GDPR, CCPA (CA) & CCDPA (CO) Compliance Consultant
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Legal Counsel: The CyberGreen Institute
Former Counsel: Mail Abuse Prevention System (MAPS)
Location: Boulder, Colorado