Former officers admitted to racially motivated torture, including stun guns and a mock execution.
Victims' attorney calls for severe sentences, citing ongoing physical and emotional suffering.
Former lawmen face federal sentencing after pleading guilty to charges including conspiracy and obstruction.
Prosecutor-recommended sentences range from five to 30 years, concurrent with potential federal penalties.
Investigation links officers to previous violent encounters; victims' false charges dropped in June.
Some officers nicknamed themselves the "Goon Squad," known for excessive force and cover-ups.
Sheriff condemns brutality, promises department reform; victims seek resignation and file civil lawsuit.