Question: Q: Who was the Head of the Commonwealth and Queen of 12 countries that had six blank shots fired at by Marcus Simon Sarjeant? 

Context paragraphs:
Josh Newton: Josh Newton (born June 8, 1973 in New Bedford, Massachusetts) is an American musician, perhaps best known for his tenure in Every Time I Die, playing bass guitar.  He is also the singer and guitarist of The Great Fire of Sixteen Sixty Six.  Newton was a member of the following rock bands: Shiner, From Autumn To Ashes, Biology, Glazed Baby, Season to Risk, Iron Rite Mangle, Creamy, Shots Fired, The Damned Things, and Reggie and the Full Effect.  Newton also did a tour playing rhythm guitar for Unsane in 1994 with Today Is The Day.

Death of Khalil al-Mughrabi: Khalil al-Mughrabi, a Palestinian boy aged 11, was killed on 7 July 2001, by shots fired from an Israel Defense Forces (IDF) tank while Khalil was resting with friends after a game of soccer in Rafah.  Two of his companions, aged 10 and 12, were also seriously wounded.  This incident took place during the Second Intifada.

Marcus Sarjeant: Marcus Simon Sarjeant (born 1964) is a Briton who fired six blank shots at Queen Elizabeth II as she rode down The Mall to the Trooping the Colour ceremony in 1981.

Star of the West: Star of the West was an American civilian steamship, launched in 1852 and scuttled by Confederate forces in 1863.  In January 1861, she was hired by the United States government to transport military supplies and reinforcements to the U.S. military garrison of Fort Sumter, but was fired on by cadets from The Citadel, in what were effectively the first shots fired in the American Civil War.

Bob Warnock: Bob Warnock (October 24, 1912 – August 3, 2004) was a sailor on the deck of the submarine, USS "Cachalot", when the attack on Pearl Harbor began.  After witnessing a Japanese plane torpedo the nearby USS "Pennsylvania" , he fired upon the plane with his sidearm.  It was once thought that these were the first shots fired by an American in World War II, though these were in fact fired by the crew of USS "Ward".  Whether he struck the plane is unknown.

Elizabeth II: Elizabeth II (Elizabeth Alexandra Mary; born 21 April 1926 ) has been Queen of the United Kingdom, Canada, Australia, and New Zealand since 6 February 1952.  Additionally, she is Head of the Commonwealth and Queen of 12 countries that have become independent since her accession: Jamaica, Barbados, the Bahamas, Grenada, Papua New Guinea, Solomon Islands, Tuvalu, Saint Lucia, Saint Vincent and the Grenadines, Belize, Antigua and Barbuda, and Saint Kitts and Nevis.

David Kang: David Kang (born 1970) is an Australian barrister.  In 1994, he fired two blank shots of a starting pistol at Charles, Prince of Wales in protest of the treatment of several hundred Cambodian asylum seekers held in detention camps in Australia.

Fallujah killings of April 2003: The Fallujah killings of April 2003 began when United States Army soldiers from the American 1st Battalion, 325th Infantry Regiment of the 82nd Airborne Division fired into a crowd of Iraqi civilians who were protesting their presence at a school within the city of Fallujah.  The soldiers claimed they were receiving fire from the crowd, whereas the civilians said they were shot at first.  Human Rights Watch, which inspected the area after the incident, found no physical evidence of shots fired at the building where U.S. forces were based.

Teófilo Marxuach: Lieutenant Colonel Teófilo Marxuach, (July 28, 1877 – November 8, 1939), was the person who ordered the first shots fired in World War I on behalf of the United States on an armed German supply ship trying to force its way out of the San Juan Bay.  Marxuach ordered hostile shots from a machine gun and a cannon located at the Santa Rosa battery of "El Morro" fort, in what is considered to be the first shots of World War I fired by the regular armed forces of the United States against any ship flying the colors of the Central Powers, forcing the "Odenwald" to stop and to return to port, where its supplies were confiscated.

Death of Sammy Yatim: The death of Sammy Yatim occurred early in the morning of July 27, 2013, in Toronto, Ontario, Canada.  Yatim, an 18-year-old Toronto male armed with a pocketknife, was shot at nine times, and was hit by eight of the shots fired by 30-year-old Toronto Police Service (TPS) officer James Forcillo.  He later died from the injuries.  The incident occurred after Yatim, brandishing a 12 cm switchblade knife in a Toronto streetcar, advanced on passenger Bridgette McGregor, threatened other passengers, and exposed himself.  The confrontation between Yatim and the police was recorded and footage of it was released publicly, prompting strong reactions across Canada.

Supporting paragraphs: Marcus Sarjeant Elizabeth II
Answer: Elizabeth II