Effects of violence course

How can we prevent kids getting into violent crime? Perhaps the most vunerable kids, or those already exhibiting violent behaviour, could be sent on a course to show them the effects of violence. They could be taken to a morgue to see death first hand; they could be shown photographs and hear stories of the effects; they could meet the parents of those who have died and experience the grief first hand.

Would it work? I don't know, I'm not a psycologist. But I think perhaps it could shock some of those kids out of the path they might otherwise follow.