I've seen estimates as low as 6 and as high as 36. Given deaths attributable to the protests is an extremely contentious issue, with significant sociopolitical implications, a bias in numbers reported is a given, as chaotic environments give chaotic data.

Ie it's possible to make a case for some of the deaths occuring during the time as "caused by", or "happened during". And those wanting to spin it one way will as suits their particular goal.

I'm going with a middle ground, which is against what I'd think is likely, given what I watched unfolding on livestreams - from people there, versus minimising reporting from the media. Major US cities being randomly set on fire is not "peaceful protest".