Toronto Police held a moving news conference Sunday at which the mother of Cheyanna Cooper, 24, pleaded for any information that might lead to the recovery of her daughter. The mom, Michelle Walker, said Cheyanna was last seen on December 13 at the Horizons For Youth Shelter on Gilbert Ave. near Eglinton Ave. She came to Toronto to “experience life” said her mother. That was early December. Cheyanna is a Cree woman from Saskatchewan.