A man wanted in the 1984 killing of a Florida woman has been arrested in California nearly four decades later, authorities said Thursday.Detectives from the Hillsborough County Sheriff's Office were traveling to San Diego County to interview Donald Michael Santini, who was being held in jail following his arrest Wednesday, the sheriff's office said in a statement.Santini had been on the run since June 1984, when Florida authorities obtained an arrest warrant linking him to the strangling death of 33-year-old Cynthia Ruth Wood of Bradenton, located south of Tampa.Wood's body was found in a drainage ditch about five days after.