BY GRAHAM LEE BREWER, Staff WriterThe state has the drugs necessary to perform four upcoming executions and plans to use the same three-drug cocktail it used in a controversial April lethal injection, the Oklahoma prisons director said Friday in federal court. Director Robert Patton testified before a federal judge that the state has acquired midazolam, the first drug used in April to execute convicted murderer Clayton Derrell Lockett, and a physician has been chosen for the next execution.Read more on NewsOK.com