A Georgia mother says in a federal lawsuit that her unarmed son’s civil rights were violated when he was shot and killed by an Atlanta police officer.

Melva Rogers on Monday sued the city, police Chief George Turner and former officer James Burns, who was fired after the shooting. Authorities have said Burns killed her 22-year-old son, Deravis Caine Rogers, while responding to a call about a suspicious person June 22. Rogers was black, and Burns is white.