SAN ANTONIO — San Antonio police have opened an internal affairs investigation into the behavior of a veteran officer accused of using a racial slur and beating a lesbian woman who asked him to put out his cigar at a community pool. Tamara Vaughan, 18, said her jaw was pushed in and she still cannot open it far after an attack by Detective Keith Alfaro, 35, who was off-duty. Vaughan was hospitalized. She has bruises on her arm that she says are from Alfaro and estimates he hit her 25 times, including putting his forearm on her throat and choking...