The little town of Crandon and its massive disaster

Crandon, Wisconsin is located about 2 hours away from Green Bay. I don't know if you all heard about what happened up there, but here it is briefly:

Tyler Peterson a deputy Sheriff from Crandon, age 20, went on a shooting rampage in his ex girlfriends house. He killed 5 people ages 14-20, he shot at another and he is in critical condition. Peterson then fled the scene and was not killed until Sunday afternoon by a sniper. Now the town of Crandon is a very small town and everyone knows everyone so this is really hitting everyone hard. I for one have been going up to Crandon for 5 years now because that is where my best friends cottage is located. For the past 5 years I've gotten to know a lot of the kids around that area so when I heard about this I freaked. I have so many friends up there and I hoped and prayed to God that none of them were involved in this. None of my close friends thankfully were involved, but 2 of the kids we did know happened to be there. One is now dead and the other is in critical condition in the hospital.

What would make someone snap so bad that they would go and kill 5 people? Especially a deputy Sheriff. And who is the right mind would hire a 20 year old to be a deputy sheriff? Granted it is a small town and all, but don't you need some kind of experience before you can handle a job like that?

Now seriously these kids that died were in high school and a few had recently graduated. The 14 year old just started high school. She wasn't even beginning a real life yet and neither were the other kids. We haven't even begun to have our own life. We are basically doing all the pre recs for it. They will never get the chance to graduate college, have a family, or even make their mark on the world. They will never get the chance to do any of the things me and you are doing today. This just makes you realize that you really do have to live everyday to the fullest because you never know when you'll be taken from this world. So make too many friends, stay up wayyyy to late on a school night, love so hard it hurts, see the world, and just live your life the way you want to. Because you only get once chance at life, so do what you must to make it the best one ever!