Update: Bear killed that attacked man in Eldorado National Forest
http://blogs.sacbee.com/crime/archives/2010/07/black-bear-atta.html
Wardens Kill Bear In Camper Attack
Couple Was Camping In Eldorado National Forest
http://www.kcra.com/news/24126817/detail.html
Apparently some campgrounds in the area have bear boxes, but not Yellowjacket. The KCRA report even has video of the "crime scene" and apparently they had food stored in a screened shelter tent set up around the campsite's picnic table. Reports are that the bear was shot by California Fish & Game and not Forest Service personnel.