Two relatives were killed in a Green Bay home on the evening of September 28, 2020. Gerson Alvarez-Franco, 37, and his 30-year-old cousin Jaime Lemus were found shot to death at a residence on Clement Street after police were called about 8:30 p.m.

Investigation led authorities to another relative, 28-year-old Oscar Lemus-Franco. After the killings, officers tracked him in a vehicle; a high-speed chase topped out at about 95 miles per hour before his car crashed in downtown Green Bay. He fled on foot and, while officers attempted to arrest him, stabbed a Green Bay police officer in the face. The officer survived.

Oscar Lemus-Franco was charged with two counts of first-degree intentional homicide and reckless injury and entered a plea of not guilty by reason of mental disease or defect. Court proceedings were delayed by competency issues.