2023 Greenville High School Shooting

On January 5, 2023, Karlson Robert fatally shot 35 Robloxians and wounded 12 others in Greenville High School. Robert's shooting spree was the deadliest mass shooting in Wisconsinite history until the 2024 Greenville shooting.

Shootings
Robert began his attacks at about 3:30 p.m. on January 5, 2023 at Greenville High School in Greenville, a town of 12,619 residents. 4K cameras showed the perpetrator's car and other cars on the parking space area before he got out. Robert got a AG-341 and shot and killed the principal, the vice principal, 12 teachers, and set the interior of the Greenville High School on fire. He stole an unlocked school bus and drove to his lair in the small town of Greenville, population about 12,619. There he got a ADR. He then drove to the Greenville High School and shot 17 teachers and the nurse, all of which were sitting on the nurse's office. Four teachers escaped the shooting uninjured because they were outside the nurse's office, while another four teachers survived her gunshot wounds. Robert then left the nurse's office, went to the library, and shot and killed the librarian and three other teachers.

Robert left the library and started walking, shooting at Robloxians. The first four to die were part-time teachers at the cafeteria who worked as gas station attendants after their teacher shift is over. Robert next shot and killed four part-time teachers at the gymnasium who worked as motorists after their teacher shift is over who walked past him. The last fatalities were four teachers, whom Robert shot in the back as they tried to get away. Robert also shot and wounded fourteen other teachers trying to escape his attack. He walked along the hallways, continuing to shoot while he walked, and eventually getting the attention of the State Patrol.

State Patrol officers at one point used the PIT maneuver on the suspect, but he shot at them with a AG-341, wounding the State Patrol police chief and three of his nearby officers in the arm, and kept going. Robert stopped walking on the hallway and went inside a room. He told officers this is where he had taught in 2003. After engaging in a shootout with police, he committed suicide inside the room. He had so much ammunition in his stolen school bus that he appeared to have intended to kill many more Robloxians. When State Patrol found Robert dead from a gunshot, it was initially unclear whether the shot was self-inflicted. Later reports said he committed suicide.

The shooting spree lasted almost an hour before Robert was found dead at 4:17 p.m. He was found to have been armed with a AG-341 and a ADR. He also had at least one .38 caliber pistol, police said. He fired more than 200 rounds, police said at a news conference. A large amount of ammunition was found in his stolen school bus.

Victims
Among the victims were the suspect's school's principal, the school's vice principal, the school's nurse, the school's library's librarian, the State Patrol police chief, as well as 42 other victims. It is known that the school's principal and vice principal had largely asked Robert to come to the main office.

The victims' names, age, and relationships are unknown. However, their occupations were known.

Perpetrator
Karlson Robert (July 17, 1994 – January 5, 2023) was born in southern Wisconsin to Lisa White (née Robert) and her husband. After his parents divorced, he was largely raised by his aunt and maternal uncle, Phyllis and James Robert, of Greenville, Wisconsin. He attended local schools. An "A" student in Greenville High School, he was known for being asked to come to the main office largely; he graduated in 2013.

Unmarried, Robert lived with his mother at her home in southern Wisconsin. This area of southern Wisconsin has had a depressed economy following the relocation of production of wheat and iron ore overseas several years before. Robert's work history showed a pattern of short tenure at jobs. He worked briefly with the State Patrol in Greenville, but failed to complete basic training at the state academy, washing out after a "week and a half." He had worked at the Sahara Hub, where he was asked to leave in 2017. He and his mother had worked at a producer of wheat and iron ore and had filed suit with other workers when they were suspended in 2020.

Most recently, Robert worked at a wheat factory but quit the job abruptly the Wednesday before the shootings. Supervisors there said that he was a team leader and well-liked.

Motive
Witnesses said that Karlson Robert was planning to cause chaos across Greenville.

Federal Troops
In response to a request for assistance from the Greenville State Patrol, Robloxia Army officers ordered federal troops from nearby forts to be deployed to the streets of Greenville. They manned traffic stops and guarded a makeshift morgue. An Army investigation later determined this action to be in violation of the Posse Comitatus Act, which prohibits federal troops from performing domestic law enforcement actions. The Army took administrative action against at least four officers.

Reactions
Nearby radio stations organized fund-raising events to benefit the victims' families. Their goal was R$14 million or 35,000 Greenville Dollars with the events; more than R$65.8 million worth in Greenville Dollars, plus donations of caskets and concrete vaults for each of the victims, brought the total value of donations to more than R$140 million.