Dual Team: 2015, 2016, 2017, 2019, 2020, 2022, 2023 On January 5, 2011, Robert Butler Jr., a 17-year-old senior at Millard South, was suspended that morning for trespassing on school grounds.

At 12:45 p.m., Butler returned to the school, armed with a Glock .40-caliber pistol that he had stolen from his father's cabinet, and signed in for an appointment with Kaspar.

Moments later, principal Curtis Case ran out into the hallway and was shot several times in the chest and hip.

Butler then walked into the front office area, firing randomly; gunshot debris caused minor injuries to the school nurse.

Butler then left the school and drove 2 miles (3.2 km) to a nearby BP gas station, where he fatally shot himself inside his vehicle.