Ax Murder TrialSet For Feb. 13 PONTIAC (AP — Non jury I trial of William Gravlin of Troy, charged in the 1964 ax murders , of his wife, a son and five i daughters, ha been set for Feb. L KJ bv Oakland County Circuit t Judge James Thorbum.i Attorneys for Gravlin requested trial without jury in Pontiac.Cravlin’s family was slain at ' their home m September 1964.In January 1965. he was con-i fined to the Ionia State Hospital for the Criminally Insane until ■ he u as recently judged fit to » stand trial He now is in the Oakland County Jail.