Anthony Young Yoppa Kostrzewa, 24, was shot and killed in the backyard of a house on the 200 block of Schiller Street in Aurora on August 1, 2014. He had been standing in the front yard with two other men when a dark gray pickup carrying at least three people stopped nearby. Two men described only as Hispanic and wearing dark clothing left the truck, the other two men ran into the house, and Anthony fled toward the backyard. The armed men chased him around the side of the house; gunfire followed and Anthony was mortally wounded. A 2:35 p.m. call brought police and paramedics, and he was pronounced dead at the scene.

Detectives described the killing as deliberate rather than random. The same house had been shot at in a pre-dawn drive-by the day before, and investigators publicly said gang motivation might be involved. Anthony recorded music under the name Young Yoppa; posthumous compilations and online tributes preserve his work and memory. Crime Stoppers offered up to a $5,000 reward for information leading to an arrest. Is there anyone who knew Anthony or who remembers seeing a dark gray pickup in that neighborhood that afternoon?