Family of Chicago officer slain by partner on duty files lawsuit

SPRINGFIELD, Ill.

(AP) — The Chicago Police Department knew that Officer Carlos Baker was reckless and posed a threat to his partner, Krystal Rivera, before Baker fatally shot her last summer while the pair attempted to apprehend a suspect with a gun, a lawsuit filed Thursday claims.

Rivera, 36, had told supervisors she feared for her safety with Baker as her partner and had ended a two-year on-agai…