I imagine you are referencing the latest bear encounter in Soldotna:
The bear issue in Alaska is very complicated and is compounded by areas where garbage is left out where bears get it, human and bears fishing in the same rivers, food left out overnight on picnic tables, etc.
Denali NP has a lot of investment into bear management and the training of people to keep food away from bears. They have a very strict bear canister program for all overnight campers & backpackers. The campgrounds will ticket if anyone leaves food items out. Thus, the bears there do not have many interactions with humans and there have been no known deaths there. I feel very safe among the bears in Denali and backpack and hike there solo.
Russian River CG attracts bears during the salmon runs. We always see bears when we go down for our two fishing trips every summer. The bears want easy food... fish carcasses. But they also cruise the campground where in past years we have gone to the outhouse early morning to find bears chewing on full beer cans, coffee containers, juice containers, salmon grills all left out on picnic tables over night. The humans are the ones with the problem. But a fed bear is a dead bear, the saying sadly goes. This year because of all our complaints they have become much more pro-active changing the rules about carcasses in the river & warning about food left out on tables.
Soldotna has had a number of bear encounters with runners, walkers with dogs, etc. in the past years. Even Anchorage has had to close down biking/running trails after bikers & runners have been mauled. Anchorage has a lot of bears in the area, so we are very cautious on all the hiking trails around there.
If you are concerned at the Russian RIver CG about, say, walking to the falls, wait at the parking lot to the falls for a group and join them. There are not very many recorded attacks with people in groups of 4 or 5 or more. I walk to the falls by myself every trip. I make noise near brush and keep my eyes peeled. There are usually a number of people using the trail. Honestly, I get more concerned with all the people carrying guns there!
There are places on the Kenai I would not hike by myself like the Resurrection River Trail, which is the trail that runs south from Russian Lakes to Seward. It is a known brushy, bear trail.
I make a lot of noise when I am by water, like Juneau Falls, and I prefer to hike that Resurrection Trail with friends.
I don't run in bear country so as not to trigger the natural attack response from a bear. Plus, I sing a lot when I am alone.