 Coles was killed on 13 February 1891 under a railway arch at Swallow Gardens , Whitechapel . Her throat was cut but the body was not mutilated . James Thomas Sadler was seen earlier with her and was arrested by the police , charged with her murder , and briefly thought to be the Ripper . He was , however , discharged from court for lack of evidence on 3 March 1891 . 
