Mystery Bullet Rouses FamilyA Salt Lake family, awakened shortly before 1 a, rn, Sunday when a .32 caliber bullet crashed through their front door, were counting themselves lucky Sunday evening. The slug wasstopped by a wall partition only a few inches from the head of a sleeping youth.Salt Lake police received n report of the shooting from Hay Campos, 130 Hawthorne avenue.Ho trace of the assailant was found Sunday. Neighbors said they heard three shots, but could see no one.The heavy metal projectile ripped a hole in the front screen door of the Campos home, shattering a pane of glass in the door and lodging in the wall across the front room. On the other side of the wall, Hay Campos Jr. was sleeping.