Quoting PeanutButter*HerbalifeLad:" until they make a registry for murderers and any other violent crimes i disagree with the sex offender registry and the facebook pages to ban them"
Murderers are almost always incarcerated 25+ to life, so a registry would be redundant when anyone can easily search prison/crime records; murders are also highly publicized so a killer's name is also easily searchable.
And what do you mean by violent crimes? Like beating someone up? You want to have a registry for people who get into fights?