James Alex Fields Jr., the driver charged with killing a woman at the white nationalist rally in Charlottesville, was previously accused of beating his mother and threatening her with a 12-inch knife, according to transcripts from dramatic 911 calls released Monday. Samantha Bloom, who is disabled and uses a wheelchair, repeatedly called police about her son, in 2010 and 2011, telling officers he was on medication to control his temper, transcripts from 911 calls show. Records show that Fields was arrested and put in juvenile detention after his mother reported in 2011 that he stood behind her wielding a knife. Earlier...