By Mary Wisniewski CHICAGO (Reuters) – Guns and bullets seized from Chicago-area crimes will be melted down and turned into jewelry by a company that pledges to give part of the profit to at-risk children, company and government officials said on Wednesday. The Cook County Sheriff’s Office collects about 1,500 guns a year, along with ammunition, said Sheriff Thomas Dart. If the guns are no longer needed in an investigation, they are destroyed. …