TACOMA, Wash. - Tacoma Police have canceled an Amber Alert for a 16 year old special education student who was last seen with a 19 year old man. Police say Brian Troyer was last seen walking away from the Tower Bowling Lanes last night in Tacoma with 19 year old Terrence Powell who is a Level 1 sex offender. Police say 16 year old Brian has a mental age of 9 years old and may be in danger.