That's not a documented case of DDoSing a company to get location.
Re:Tor 0day: Finding IP Addresses
by matheusmoreira on Thursday September 17, 2020 @05:11PM
(#24510016)
They're examples of a US federal agency using malware to compromise the computer systems of suspects and collect evidence to use against them. If they're willing to exploit vulnerabilities in order to break into computers, surely they won't balk at denial of service attacks. They even let the suspect go free in order to avoid revealing the vulnerability they exploited.
https://en.wikipedia.org/wiki/Network_Investigative_Techniqu...
https://www.eff.org/pages/playpen-cases-frequently-asked-que...
A DoS attack is nothing to these people. The only difference between them and cybercriminals is the fact the law legitimizes their work.