Dressed in a menacing greatcoat with a double cape, Jack was a highly skilled Assassin, having been well trained by his mentor, Jacob Frye, while still in his formative years. He possessed a vast skill-set, including armed and unarmed combat , stealth, public assassination techniques, proficiency in firearms and freerunning . By the time of the Whitechapel murders, he was capable of holding his own against and even overpowering the Frye twins, being well-nigh impervious to frontal attacks in the heat of battle. He also possessed an indomitable will, never giving up on the task at hand and approaching situations with utmost focus and care.
Dr. Thomas Neill Cream (27 May 1850 – 15 November 1892) was a doctor secretly specialising in abortions. He was born in Glasgow , educated in London and Canada, and entered practice in Canada and later in Chicago, Illinois . In 1881 he was found guilty of the fatal poisoning of his mistress's husband.  He was imprisoned in the Illinois State Penitentiary in Joliet, Illinois , from November 1881 until his release on good behaviour on 31 July 1891. He moved to London, where he resumed killing and was soon arrested. He was hanged on 15 November 1892 at Newgate Prison . According to some sources, his last words were reported as being "I am Jack the...", interpreted to mean Jack the Ripper.  However, police officials who attended the execution made no mention of this alleged interrupted confession.  As he was still imprisoned at the time of the Ripper murders, most authorities consider it impossible for him to be the culprit. However, Donald Bell suggested that he could have bribed officials and left the prison before his official release,  and Sir Edward Marshall-Hall suspected that his prison term may have been served by a look-alike in his place.  Such notions are unlikely, and contradict evidence given by the Illinois authorities, newspapers of the time, Cream's solicitors, Cream's family and Cream himself.