Police in Southwest Philadelphia ask for help locating missing 17-year-old Tysean Frazier. SOUTHWEST PHILADELPHIA - Police in Southwest Philadelphia are asking for the public’s help in finding a missing teen.Officials say 17-year-old Tysean Frazier was last seen Saturday, December 26, around noon, on the 5900 block of Trinity Street.Frazier is described as 5’7" and weighing about 215 pounds.