Sherman (UPI).-—The trial, of Luge no Welch, accused otshooting to death a Dorchester.Itx., farmer, was expected to reach the jury toda. IBoth the prosecution and defense closed their cases at anafternoon session Wednesday.Only the closing afgunxMits reniained today before the jury begins deliberation.W\ Ich is charged with the murder of Robert Ballou, 24. and of terrorizing the Ballou family at their farm home. I A Sheimau psychiatrist tesU-j tied Wednesday that he believes Welch is insane now and wa insane last June 11, the due of7 • mthe shooting.Ihe psychiatrist. Dr. Davis Wells satd he based his opinion on observation of Welch and on tests he gave the 27-yearold j Celim, Lex Negro. I1 he prosecuUcMi offered a rebuttal to Wells’ testimony from* Texas Ranger G. W . Burks.| said that from bis observationef Welch, he believes the defendant it *aue.