Question: Jeffrey James Weise, was an American teenage mass murderer and spree killer, who was a student at Red Lake Senior High School in Red Lake, Minnesota, he murdered nine people in The Red Lake shootings were a series of spree killings that occurred on which date?

Context paragraphs:
Red Lake Senior High School: Red Lake Senior High School is a public state-funded high school in unincorporated Red Lake, in Beltrami County, northern Minnesota, USA.  The high school is located on the Red Lake Indian Reservation on which members of the Red Lake Band of Chippewa (Ojibwe) Indians live, and has over 300 students.  The school's mascots are the "Ogichidaag" and "Ogichidaakwag" (warriors and lady warriors).  The school also hosts its own radio station, Ka-MOD (94.1 FM).  The school is a part of Red Lake School District (Independent School District #38).

Shi Yuejun: Shi Yuejun (; 5 March 1971 – 20 December 2006) was a Chinese mass murderer and spree killer known as the "Jilin butcher", who murdered 12 people and wounded five others in Liuhe County and Tonghua County, Jilin Province between 24 September and 29 September 2006.  He was sentenced to death on 25 November the same year and executed about a month later.

Red Lake shootings: The Red Lake shootings were a series of spree killings that occurred on March 21, 2005 in two places on the Red Lake Indian Reservation in Red Lake, Minnesota, United States.  That morning, 16-year-old Jeffrey Weise killed his grandfather (a tribal police officer) and his grandfather's girlfriend at their home.  After taking his grandfather's police weapons and vest, Weise drove his grandfather's police vehicle to Red Lake Senior High School, where he had been a student some months before.

Red Lake County Courthouse: The Red Lake County Courthouse, located at 124 Langevin Avenue Red Lake Falls, Red Lake County in the U.S. state of Minnesota is a red brick Beaux Arts building featuring a small dome at each corner.  Originally the building also had a large central dome, but it was removed in the 1940s.  The courthouse was completed in 1911 at a cost of $37,070.  The building was designed by Fremont D. Orff and James Brady.  The front entrance of the courthouse is flanked by faux columns, topped by a classic pediment.  The interior atrium is open to a two-story rotunda with arched openings to the second-level walkway.

Red Lake School District: Red Lake School District ISD #38 is a school district in Red Lake, unincorporated Beltrami County, Minnesota, on the Red Lake Indian Reservation.

William Unek: William Unek (1929-February 21, 1957) was an African police constable and mass murderer who killed a total of 57 people in two separate spree killings three years apart.

Seung-Hui Cho: Seung-Hui Cho (in Korean, properly Cho Seung-Hui; January 18, 1984 – April 16, 2007) was a South Korean spree killer and mass murderer who killed 32 people and wounded 17 others armed with two semi-automatic pistols on April 16, 2007, at the Virginia Polytechnic Institute and State University in Blacksburg, Virginia.  An additional six people were injured jumping from windows to escape.  He was a senior-level undergraduate student at the university.  The shooting rampage came to be known as the Virginia Tech shooting.  Cho committed suicide after police breached the doors of the building where most of the shooting had taken place.  His body is buried in Fairfax, Virginia.

Jeff Weise: Jeffrey James Weise (August 8, 1988 – March 21, 2005) was an American teenage mass murderer and spree killer, who was a student at Red Lake Senior High School in Red Lake, Minnesota, located on the reservation of the Ojibwe people.  He murdered nine people in a shooting spree on March 21, 2005.  He killed his grandfather and his grandfather's companion before going to the reservation high school, where he murdered seven more people and wounded five others.  He committed suicide before being captured by police.

Red Lake Indian Reservation: The Red Lake Indian Reservation ("Miskwaagamiiwi-zaaga'igan") covers 1,258.62 sq mi (3,259.81 km²) in parts of nine counties in northwestern Minnesota, United States.  It is made up of numerous holdings but the largest section is an area about Red Lake, in north-central Minnesota, the largest lake entirely within that state.  This section lies primarily in the counties of Beltrami and Clearwater.  Land in seven other counties is also part of the reservation.

Tore Hedin: Tore Hedin (7 January 1927 – 22 August 1952) was a Swedish mass murderer, spree killer and police officer.  The act perpetrated by Hedin, commonly known as Hurvamorden, is infamous for being the worst known act of spree killing in Swedish criminal history.  The case remains infamous as well since Hedin, as a police officer, was for an extended period assigned to investigate his own murders.

Supporting paragraphs: Jeff Weise Red Lake shootings
Answer: March 21, 2005