HUNTSVILLE, Texas (AP) — The Texas Board of Pardons and Paroles has voted unanimously against recommending clemency for a convicted killer set to die this week for the slaying of a woman in San Antonio in 2004.

The panel's 6-0 vote Tuesday follows the Texas Court of Criminal Appeals and a federal judge's refusal to stop the lethal injection of Taichin Preyor scheduled for Thursday. He was condemned for killing 24-year-old Jami Tackett at her apartment. Tackett is described in court documents as a drug dealer and the 46-year-old Preyor as a customer and dealer.

Preyor's attorneys contend his trial lawyers didn't properly investigate his abusive childhood and that an earlier inexperienced appeals attorney relied on a disbarred lawyer for guidance.

Preyor's attorneys say they're appealing to the 5th U.S. Circuit Court of Appeals.