White House press secretary Karine Jean-Pierre explained the Biden administration's decision to request immunity for Saudi Arabia's Crown Prince, Mohammed bin Salman in lawsuits over his alleged role in the killing of Washington Post journalist Jamal Khashoggi in 2018.

"So, look, again, this is immunity. Determination is a legal one. That's what I was laying out earlier. The United States consistently has afforded head of state immunity to heads of government, such as prime ministers consistent with customary institutional law," Jean-Pierre said. "U.S. practice on this issue is longstanding and consistent, including a number of head of state immunity cases from the past four administrations."

Her comments come after the State Department made the determination on Thursday that Prince Mohammed, also referred to as MBS, should be immune from lawsuits over his alleged role in the death of Khashoggi.

The State Department called the decision "purely a legal determination," citing longstanding precedent on the issue.

BIDEN ADMINISTRATION REQUESTS IMMUNITY FOR SAUDI CROWN PRINCE IN KHASHOGGI KILLING: 'BEYOND IRONIC'

In the filing, the State Department said that it "takes no view on the merits of the present suit and reiterates its unequivocal condemnation of the heinous murder of Jamal Khashoggi."

When President Biden was running for his current office in 2019, he said that he planned to make a "pariah" of Saudi leaders over Khashoggi's death. He made the comments during a Democratic primary debate in 2019.

BIDEN CONFRONTS SAUDI CROWN PRINCE ON KHASHOGGI KILLING

At a 2019 CNN town hall, Biden called the incident "flat-out murder."

"And I think we should have nailed it as that. I publicly said at the time we should treat it that way and there should be consequences relating to how we deal with those — that power," Biden said.

Fox News' Elizabeth Pritchett and The Associated Press contributed to this report.

One of the victims of the quadruple homicide near the University of Idaho on Nov. 13 called a man named Jack six times just before she was murdered, her sister told "Inside Edition."

Moscow police believe victims Kaylee Goncalvez, 21; Madison Mogen, 21; Ethan Chapin, 20; and Xana Kernodle, 20, were stabbed to death at their home near campus between 3 a.m. and 4 a.m. on Nov. 13.

"At 2:26 a.m., Kaylee starts to call Jack," Alivea Goncalvez told "Inside Edition," which described Jack as a young man. "Kaylee calls Jack six times between 2:26 a.m. and 2:44 a.m. From 2:44 to 2:52 Maddie calls Jack three times, then Kaylee makes a final call to him at 2:52 a.m."

Kaylee Goncalvez has photos with a young man named Jack posted to her Instagram account. In one such post, an Instagram user left a comment insinuating the man's involvement in the crime, which Kaylee''s sister, Autumn Goncalvez, shot down in a response to that user. 

UNIVERSITY OF IDAHO MURDERS TIMELINE: WHAT WE KNOW ABOUT THE SLAUGHTER OF FOUR STUDENTS

"[O]ne of the stupidest comments i've [sic] ever seen," Autum wrote in her Thursday comment. "[A] photo of my sister smiling with a boy she dated for [six] years and you accuse him. [P]ointing finger[s in] the wrong direction. [J]ack has nothing but love for [K]aylee."

IDAHO MURDERS: SISTER OF SLAIN STUDENTS SAYS ‘NO ONE IS SAFE’ WITH SUSPECT AT LARGE

Moscow Police Department Chief James Fry said during a Wednesday press conference there were no signs of forced entry at the house when they initially responded to reports of an unconscious person at 11:58 a.m. on Nov. 13. 

The four friends were all members of Greek life on campus.

Two other roommates were home the night of the attack, but police said Friday that they are not suspects in the case.

UNIVERSITY OF IDAHO MURDERS: TWO ROOMMATES WERE AT HOME WHEN FOUR STUDENTS WERE KILLED

Moscow police said they were killed in an "isolated, targeted" attack. Initially, the department said there was no immediate threat to the community, but they walked back that statement on Wednesday. As of Friday, authorities still did not have any persons of interest or suspects.

IDAHO STUDENT KILLINGS: CORONER RELEASES AUTOPSY FINDINGS

The Latah County coroner on Thursday revealed the victims' manner of death as homicide/murder and their cause of death as stabbing.

Many students left campus early before Thanksgiving break after the tragedy.

Authorities are imploring anyone with information about the murders or the victims' whereabouts on the evening before the attack to contact the Moscow police at 208-883-7054.