It absolutely happens before the conviction. Arrest records and mugshots are generally public information, and the press will publish them immediately in many cases.

There is also no obligation to retract/amend if the person is found innocent, and there is nothing the person can do if they use careful language (arrested for, accused of, allegedly). Most publications will refuse to take the article down later if the innocent person requests it, too, meaning that follows them forever. There are companies that make money offering the service to bury such articles to make it easier to get a job.

The US routinely demonstrates why most its peers do not do it this way.

this is America, half this country gets a boner when they think about shooting someone and being praised for it. all cops started this way and so they don't feel bad when the enable vigilante justice in others. they all think that shit's cool as hell anyway