If it isn't guns, people will find other ways to kill others. Remove all dangerous items and they'll use their fists. Humans are extremely inventive when it comes to their killing.
I personally don't see the problem on guns, although there should be strict regulations when it comes to obtaining them like psychriatric evaluation, age limits, extra licenses to use more harmful ammo. If people try to burgle your house etc, you should be able to defend yourself.