NEW YORK ( CNN ) -- In a dramatic reversal , the Florida state attorney 's office announced Monday it will seek the death penalty against Casey Anthony , the 23-year-old woman charged in the death of her 2-year-old daughter Caylee . Casey Anthony is charged with first-degree murder in the slaying of her daughter Caylee , 2 , Trial is set for October . The state had previously said it would not ask for the death sentence for Anthony . The development could have a major impact on how the case plays out at trial , including whether defense attorney Jose Baez can stay on the case . Baez has not been certified by the court to defend capital punishment cases . Prosecutors announced their change in strategy in a letter of intent . Read the letter of intent ( pdf ) Meanwhile , Anthony 's defense filed a motion on Friday with Orange County Circuit Court , seeking more phone records from a dozen people involved in the case . The motion asks for any and all records for `` phone calls , text messages , P2P communications , Internet usage , WAP usage , and cell tower pings . '' The defense wants records from the defendant 's parents , George and Cindy Anthony ; her former fiancé , Jesse Grund ; her brother , Lee Anthony ; a friend , Amy Huizenga ; and Roy Kronk , the meter reader who found Caylee 's remains in December of last year . Kronk had called authorities as early as last August to report he had seen a suspicious bag in the area . Other names on the list include several former boyfriends , two private investigators , a volunteer searcher and Richard Cain , an Orange County Sheriff 's deputy . Cain was fired after an internal investigation found he failed to respond to repeated calls from Kronk about the suspicious bag . Cain has refused to leave the job and is awaiting an appeal . `` Various cell phone service providers are in possession of certain items which are material to the preparation of the defense in this cause , '' the motion says , adding , `` the items sought by this application can not be obtained through normal discovery . '' The motion says the release of these records could lead to admissible evidence in Anthony 's trial , which is set to begin in October . Anthony is charged with first-degree murder of Caylee , whose remains were found in woods near her grandparents ' home in Orlando .
Florida 's turnaround could have a major impact on how the case plays out . Casey Anthony 's defense filed motion for more phone records from a dozen people . The judge has ordered them to be turned over, but they are refusing and will appeal if not given access.