Dillon Leo Bueno, 24, was shot and killed outside his family’s home on Krameria Street in Commerce City, Colorado, on October 31, 2015. He had been handing out candy for Halloween and, after running out, went to his car in the driveway to retrieve more just after 9:30 p.m. Three men approached and an attempted robbery escalated; Dillon was shot and died in his parents’ arms after they tried to render aid.

Witnesses said a friend who was with Dillon ran inside screaming for someone to call 911. Investigators with the Adams County Sheriff’s Office described the suspects as three males wearing black hoodies and skeleton masks or bandanas that obscured their faces; some reports identified the suspects as Black men. The assailants fled and have not been apprehended. The investigation remains open and the family has repeatedly appealed for information.

If anyone was in the Krameria Street neighborhood that Halloween night or has tips about the three men seen at the house, please come forward with information.