alt Hacker NewsThis is completely standard journalistic practice when reporting a quote on something that is currently contentious or unproven. For example, consider the two hypothetical headlines:
Activists decry police murder of protester
Activists decry police "murder" of protester
The first implies that the police murdering the protestor is an established fact. The second makes it clear that it is the activists who used the term "murder" rather than it being a non-contentious fact.
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It doesn't help when snippets are post leaving out the other context clues where things like "according to" or "anonymous source stated" or similar attribute of the quote. Just putting words between quotation marks does not lead me to believe they were quotes if there is no attribution. Otherwise, it's a Trump level "people tell me" type of "quote".
In that case, that seems like a variation of the "past exonerative tense".
Both versions are fancifully direct in our era a media+police stenography, try:
Mayor denounces "radical activists" rioting and damaging city property in response to an officer-involved incident that resulted in one fatal kinetic altercation with a "loud and provocatively dressed" man.