FILE - This May 27, 2008, file photo, shows the gurney in the death chamber in Huntsville, Texas. Three states resumed executions of death row inmates in 2018 after long breaks, but nationwide, executions remained near historic lows this year, according to an annual report on the death penalty released Friday, Dec. 14, 2018.(AP Photo/Pat Sullivan, File)

This undated photo provided by the Tennessee Department of Correction shows death row inmate David Earl Miller in Nashville, Tenn. Miller, 61, has been moved to the state’s death watch ahead of his scheduled execution Thursday, Dec. 2018. Miller, who has been on death row for 36 years, was sentenced to death for the 1981 murder of 23-year-old Lee Standifer in Knoxville. (Tennessee Department of Correction via AP)

FILE - In this Nov. 24, 2017 file photo, the head of the Pakistani Tehreek-e-Labbaik radical religious party, Khadim Hussain Rizvi prays during a sit-in protest in Islamabad, Pakistan. The party of a radical Islamic cleric who disrupted daily life with rallies across Pakistan following the acquittal of a Christian woman in a blasphemy case says he has been arrested Friday, Nov. 23, 2018 by police in the city of Lahore. (AP Photo/B.K. Bangash, file)

This undated photo provided by the Texas Department of Criminal Justice shows Roberto Moreno Ramos. Ramos is scheduled for lethal injection for the 1992 killings of his 42-year-old wife, Leticia, their 7-year-old daughter, Abigail, and their 3-year-old son, Jonathan, at their home in Progreso, located along the Mexico border about 20 miles (32.19 kilometers) southeast of McAllen. Prosecutors say Ramos killed his loved ones and then buried them underneath his home's freshly tiled bathroom floor. Authorities say he bludgeoned his family members so he could marry the woman he was having an extramarital affair with at the time. (Texas Department of Criminal Justice via AP)

This undated photo released by the California Department of Corrections and Rehabilitation shows Virendra Govin. Govin is one of two men on California's death row for committing multiple murders that was found dead at San Quentin State Prison. California prison officials said Monday, Nov. 5, 2018, they are investigating both deaths as suicides. (California Department of Corrections and Rehabilitation via AP)

FILE - In this April 13, 2011 file photo, Rodney Berget, who was convicted of killing a Sioux Falls prison guard during an escape attempt, is escorted to court in Sioux Falls, S.D. South Dakota has set Monday as the execution date for Berget. Berget is one of two inmates convicted in the 2011 killing of guard Ronald Johnson during a failed escape attempt at the state prison in Sioux Falls. The other inmate, Eric Robert was executed by lethal injection in 2012. (Elisha Page/Argus Leader via AP, File)

Gov. Jay Inslee, left, addresses a news conference with Attorney General Bob Ferguson following an earlier announcement that Washington's Supreme Court unanimously struck down the state's death penalty, Thursday, Oct. 11, 2018, in Olympia, Wash. Washington has had a moratorium on executions since 2014, but the ruling makes it the 20th state to do away with capital punishment by legislative act or court decree. The court converted the sentences of the eight people on Washington's death row to life in prison. (AP Photo/Rachel La Corte)

Anthony Garcia appears unresponsive at the Douglas County Court in Omaha, Neb., Friday, Sept. 14, 2018. Garcia, a former doctor, was convicted in the revenge killings of four people connected to a Nebraska medical school and has been sentenced to death by a three-judge panel. Garcia was convicted in two attacks that occurred five years apart. The first victims were the son and housekeeper of a faculty member at Creighton University School of Medicine in Omaha. Garcia also was found guilty in the 2013 deaths of another Creighton pathology doctor and his wife. (Kent Sievers/Omaha World-Herald via AP, Pool)