SAN DIEGO—A man who stabbed a pair of homeless people—one fatally—in two separate Midway District attacks on the same day pleaded guilty Nov. 1 to murder and attempted murder charges. Forrest Robert Brantley, 40, is expected to receive a 33 years-to-life state prison term when he is sentenced for the attacks, which occurred on Thanksgiving Day 2019. Brantley admitted to fatally stabbing 55-year-old Robert Erbe in the neck at about 8 a.m. Nov. 28, 2019, outside a 7-Eleven store on Sports Arena Boulevard. About six hours prior to Erbe’s slaying, he also stabbed another homeless man in the back and arm on Sports Arena Boulevard, according to Deputy District Attorney Will Hopkins. At Brantley’s arraignment, the prosecutor said that after stabbing the first victim, Brantley returned to the area and approached Erbe and an unidentified second transient outside a convenience store. Brantley offered Erbe drugs in a bag and then …