US woman behind Slender Man stabbing is missing after leaving group home

Morgan Geyser of Wisconsin cut off her electronic monitoring device and was last seen with an acquaintanceA Wisconsin woman who admitted to stabbing a classmate nearly to death in 2014 to please the online horror character Slender Man is missing after she cut off an electronic monitoring device and left a group home, authorities said on Sunday.Madison police issued an alert on Sunday for Morgan Geyser, now 23, saying she was last seen around 8pm on Saturday with an adult acquaintance.