Mask DNA led to homicide charges against West Allis man in fatal shooting Mask DNA led to homicide charges against West Allis man in fatal shooting Prosecutors say on Sept. 27, 2019, Keith Wolf was watching TV with his wife and 7-year-old daughter when they heard something downstairs. COLUMBIA COUNTY, Wis. - Prosecutors say a West Allis man shot and killed a man in Columbia County in 2019 after breaking into the victim's home. Jason Kijewski made his initial appearance in court Wednesday, March 3, facing a charge of first-degree intentional homicide and burglary while armed with a dangerous weapon. Wisconsin's mask mandate helped investigators in this case.