Nature is to be protected from...

You may or may not have heard about a mountain biker being mauled by a bear over the weekend. If you didn't catch the news, and/or don't live in the greater-Seattle area, let me tell you; a man was mountain biking on a marked trail in a local park with his dogs, when a black bear charged from the woods and attacked him, doing some serious damage. As of 12:00 today, he was in serious condition.
This was the second bear attack in the area in two weeks, and in case you didn't know, the attacks happened less than 15 minutes from our house. Although wildlife officials and sheriff's deputies have been tracking the bear, and have set traps, the bear remains at large. This does not rest easy with us, who back up to a forested area and a creek-bed.
Although initial reports had claimed a mother bear and her cubs had been seen earlier in the day, and that she most likely was the attacker, the man who was mauled claims that the bear was in fact a male. Wildlife officials are currently on the hunt, and say they will have to kill the bear, if and when they find him.
So here's my question: how do they know which bear is the attacker? Will they stage a black bear line-up? Will they tranquilize every bear, and then do a DNA swab to find hair fibers? Do they have a composite sketch with which they will they question other woodland creatures? How does one go about tracking a rogue bear, in a land full of other bears?
Either way, until they find said bear, we will all be a bit nervous when we walk up our road, and check the mail. My neighbor girls are now paranoid every time a leaf rustles in the creek. Who knew that living in the ‘burbs could be so dangerous?