Jack the Ripper, his best known name, was a serial killer in 1888 London. Other names the media gave him were "The Whitechapel Murderer" and "Leather Apron", however the reason Jack the Ripper stuck was because that's how he addressed himself in his "From Hell" letter. Nobody knows exactly how many victims Jack had, 11 separate murders occurred in The Rippers "hunting ground", but at least 5 of them were his work. The "canonical five", as they became called, were all found with deep throat slashes and removal of internal organs which was considered to be Jack's signature kill. Jack sent hundreds of letters to the newspaper and police, many of which were considered hoaxes. Some of the letters Jack sent came with a package containing an organ or body part of one of his victims. In his "From Hell" letter he sent a victims left kidney, claiming he fried and ate the other one. Jack the Ripper was never found and convicted and there are many arguments regarding his murders. There are over 100 books telling about Jack the Ripper and today is considered to be a "children's bogey man."
Anyone that looks directly into the lantern's beam becomes transfixed, unable to think or move while hypnotized by its glow. If the lantern is suddenly removed, those hypnotized by the light will be killed. However, if the lantern is somehow disarmed, the victims will be left dazed, but unharmed.
The effects can be negated with eye protection.
The Ripper would use the lantern on his victims so they wouldn't be able to run away, fight back, or call for help as he slowly killed them. It was snagged by Warehouse 12 in London 1889 by H.G. Wells who used Harriet Tubman's Thimble to pose as a prostitute to lure the Ripper in and then as soon as she saw he had the artifact she used her personal Tesla to snag the lantern.James MacPherson used the lantern to threaten the parents of agent Myka Bering in 2009.