On June 16, 2009, 23-year-old Detarius Martin was fatally shot at an apartment complex in Fitchburg, Wisconsin. Martin had gone to the apartment with his brother, Chukarius Martin, while accompanying the apartment resident’s estranged girlfriend. The encounter ended in gunfire; Detarius died and Chukarius was wounded.

Police investigated the shooting and charged Perry E. Lucas in connection with the incident. At trial in October 2010 a jury convicted Lucas of charges including first-degree intentional homicide. Lucas testified he had acted in self-defense; prosecutors presented a case that persuaded the jury otherwise. In January 2011 a Dane County judge sentenced Lucas to 20 years in prison, noting his lack of prior convictions as a mitigating factor.