FIRST aid would have made sure everyone of them had bear spray and not just a couple of them. Personally, when in grizzly county, I carry bear spray AND a firearm.
Update: Teen's father: Alaska bear attacked quickly - Yahoo! NewsI would be interested in hearing what the troopers feel caused the bear to attack instead of heading off deeper into the forest. All of my encounters with bear have left me with no scars, just great memories of the large beasts ..
The Grizzly Bear and the Brown Bear are the same Animal which also includes the Kodiak. They are all "Ursa Horribilis".Hmm ..
The first story described the encounter as being a brown-bear w/ cub and the second story described a grizz w/ cub.
I can see the grizz attacking to protect her baby especially if startled by a quiet-group roaming the woods. The brown would normally call her cub to her and head off deeper into the woods putting as much distance between the unknown and herself.
Either way it doesn't sound like the bear was being a predator and hunting the teens - just a chance encounter that ended up being unpleasant ...