Elizabeth Stride and Catherine Eddowes were killed in the early morning of Sunday 30 September 1888. Stride's body was discovered at about 1 a.m., in Dutfield's Yard, off Berner Street (now Henriques Street) in Whitechapel. The cause of death was one clear-cut incision which severed the main artery on the left side of the neck. Uncertainty about whether Stride's murder should be attributed to the Ripper, or whether he was interrupted during the attack, stems from the absence of mutilations to the abdomen. Witnesses who said they saw Stride with a man earlier that night gave differing descriptions: some said her companion was fair, others dark; some said he was shabbily dressed, others well-dressed. Eddowes' body was found in Mitre Square, in the City of London, three-quarters of an hour after Stride's. The throat was severed, and the abdomen was ripped open by a long, deep, jagged wound. The left kidney and the major part of the uterus had been removed. A local man, Joseph Lawende, had passed through the square with two friends shortly before the murder, and he described seeing a fair-haired man of shabby appearance with a woman who may have been Eddowes. His companions, however, were unable to confirm his description. Eddowes' and Stride's murders were later called the "double event". Part of Eddowes' bloodied apron was found at the entrance to a tenement in Goulston Street, Whitechapel. Some writing on the wall above the apron piece, which became known as the Goulston Street graffito, seemed to implicate a Jew or Jews, but it was unclear whether the graffito was written by the murderer as he dropped the apron piece, or merely incidental.Police Commissioner Charles Warren feared the graffito might spark antisemitic riots, and ordered it washed away before dawn. The "Saucy Jacky" postcard was postmarked 1 October 1888 and received the same day by the Central News Agency. The handwriting was similar to the "Dear Boss" letter. It mentions that two victims were killed very close to one another: "double event this time", which was thought to refer to the murders of Stride and Eddowes. It has been argued that the letter was mailed before the murders were publicised, making it unlikely that a crank would have such knowledge of the crime, but it was postmarked more than 24 hours after the killings took place, long after details were known by journalists and residents of the area.