Editor's Note: EXTREME CAUTION ADVISED: The videos linked and embedded at the end of the story are extremely graphic, showing brutal executions.
Newly released videos show Muslims conducting "ritual human sacrifices" by slitting the throats of their victims or putting a bullet in their heads, according to researcher Walid Shoebat, a former member of the Palestine Liberation Organization who converted to Christianity.
Shoebat's report includes several videos of ritual sacrifices. He noted the speaker in one video uses the term Qurban just before gunfire erupts and men lined up in a row fall to the floor one by one. Shoebat explained that the Arabic term "can only signify a sacrifice, which indicates that the filmed slaughter is nothing but a ritual human sacrifice."
Another video shows the throat of the "sacrifice" being slit with a knife.
TRENDING: St. Patrick's role on the 'external hard drive'
"Christians are being killed in these very rituals every day, and the bloodshed will not stop. We must work together to rescue them," Shoebat said.
He has been working with a Syrian Orthodox nun, Sister Hatune Dogan, to assist persecuted Christians in Syria, Iraq, Jordan and Turkey.
"For over a year now we have been writing and warning the world on both the realities and the revival of Islamic human sacrifice," he said. "Though Islam is a Christian heresy, its pagan roots and elements cannot be ignored, which is why I prefer to call Muslims pagan heretics, or heretical pagans."
Shoebat describes himself as a former "radicalized Muslim willing to die for the cause of jihad."
According to his biography, he arrived in the United States in 1978 to study in Chicago where he was recruited at a "terror conference" by Jamal Said, the founder of the Islamic Association of Palestine, a front group for Hamas that later launched the Washington, D.C.-based Council on American-Islamic Relations.
Shoebat said he converted to Christianity in 1994. He now is raising funds to assist Middle East Christians through a foundation he created called RescueChristians.org.
WND recently reported that Sister Dogan claimed members of the jihadist factions in Syria trying to oust President Bashar al-Assad are draining the blood of Christians they behead and selling vials to Islamic radicals for $100,000 apiece.
The Christians, she said, are beheaded in ceremonies in which they are forced to kneel, with their hands and feet bound as the Muslim radicals read a death sentence imposed because the victim refuses to renounce Christianity and embrace Islam.
WND also has reported that the Islamic State of Iraq and the Levant, or ISIS, considered to be the most ruthless of the Sunni Islamic militant groups fighting in Syria, has ordered a Christian community in Raqqa, Syria, to pay nearly 38 pounds of gold as a "guarantee of their safety." The alternative offered was death.
The videos discovered by Shoebat are graphic.
Editor's Note: EXTREME CAUTION ADVISED.The following videos show brutal executions.
A row of men:
An individual:
Shoebat said the Islamic prayer in the video "is reminiscent to the prayer said in the sacrifice scene in the film 'Apocalypto,' which is historically accurate in regards to its depictions of the bloody Aztec rituals."
"What Islam is is an Aztec-like religion of the pagan world, riddled with human sacrifice, cannibalism, and a pool of human gore," he said.
A video posted on YouTube shows Hatune presenting the results of an investigation in which she found women held captive by Muslims for ransom had been raped and mutilated. She also presents evidence for her claim Muslims are beheading Christians and selling their blood.
See Sister Hatune's presentation of her findings:
Previously, Shoebat published a video of Sunni Muslims playing soccer with the heads of the people they murdered.
WND Middle East correspondent Michael Maloof, a former senior security policy analyst in the office of the secretary of defense, said the "vociferous wrath" from jihadists that Hatune is receiving because of her vigorous effort to protect Christians has made her a prime target of al-Qaida and its affiliate, the Jabhat al-Nusra.
"Al-Nusra, which wants to establish caliphates in Syria and throughout the Middle East, has amply demonstrated that it will kill any 'infidel,' even Muslims, who do not subscribe to a strict form of Shariah," Maloof said. "This places all Christians and other minorities in peril which, in turn, puts Sister Hatune and her companions in al-Nusra's crosshairs."
Â