WASHINGTON - Virginia Gov. Terry McAuliffe has cleared the way for the state to execute a man found guilty of killing two George Washington University students in 1988.
Alfredo Prieto has been on death row since 2010 after he was convicted in the murders of Rachael Raver and Warren Fulton.
But prosecutors believe Prieto is a serial killer responsible for as many as nine murders.
He is scheduled to die Thursday night.
Unless the Supreme Court steps in, Prieto will be put to death inside the Greensville Correctional Center in Jarratt, Virginia.
He is a notorious criminal who carried out one of the more chilling crimes in the Washington area -- abducting two college students outside a downtown bar -- and taking them to a field in Reston, Virginia where he shot them to death.
On Tuesday, we talked to the brother of one of those victims as well as the prosecutor who put him away.
Prieto was already on death row in California for killing a 15-year-old girl when his DNA was linked to the murders of Raver and Fulton.
“He's a monster,” said Fairfax County Commonwealth’s Attorney Ray Morrogh.
Morrogh helped put Prieto away and will be in the death chamber to witness the execution Thursday night.
"I was well aware that Mr. Prieto in fact has no conscience and could care less about anyone's life, especially women,” Morrogh said. “He used his victims like Kleenexes, raped and murdered three different women, all of whom were innocent -- one of whom was 15 years old.”
FOX 5 has followed this case very closely over the years by interviewing members of Raver’s family and reporting extensively on every development.
Raver’s brother, Matt, told us he and his sister will both attend the execution.
"He's sadistic, he enjoys it,” said Matt Raver. “He is head of a violent gang. He plotted these killings. He went on this rampage. He was eventually caught and now he needs to be held accountable.”
Raver and Fulton were abducted by Prieto after leaving Mister Days bar in December of 1988.
DNA evidence also links him to the rape and murder of Veronica Jefferson in Arlington, Virginia in May of 1988.
Ballistics evidence also links Prieto to the murder of a Prince William County man.
"I cannot speak more highly of the Fairfax County police,” Matt Raver told us. “When they told us they finally got him, it was an ecstatic relief that he wasn't out there anymore.”
Now he says he will see justice through to the end.
"I assure everyone out there, especially the anti-death penalty people, that we are not asking for reincarnation,” said Raver. “We are pleading for justice. We are saying if you take a human life intentionally, go out there and torture people and go on rampages and randomly kill people and take their lives and shatter families, you will be held accountable and that accountability will be capital punishment -- the death penalty.”
Fulton was captain of the George Washington University baseball team when he was killed. Rachael Raver was looking forward to law school. They were both 22 years old.
Over the course of two trials and a penalty phase, defense attorneys argued that Prieto was mentally disabled and had experienced a horrifying upbringing in El Salvador. But the jurors in Fairfax County didn't buy that and decided he should die for his crimes.