iobeiison Faces Test^. . - ■■Insanity Plea FiledA .pica of innocent by reason insnriily was entered today Superior Court by the attpr-!• fur Stephen Robertson, 20, ,551 Wolcott Avc., . Middle-ivn, who is charged .with the iubie murder of two sailors st Oct. G.Judge Arthur A. Cardins ae-ptcrt (he plea from William .-Corcoran.- •A second motion filed Ly the Tense was continued to April , in Providence where Judge urellas will be silling at that itc. . .Corcoran requested that cer-in organic tests be performed r Robertson at Rhode Island ospital - blood sugar tests, l electroencephalogram, and a leumoenccphalbgram. The ost modern equipment avail-ile in the area for the two rnbral testings, Corcoran said, at Rhode Tslancl Hospital-.He noted that a private psy iafrist who has been exam-ng Robertson, Dr. P. F. 0'-ahoncy of Providence, • was able to make a full evaluation the patient without further itS. 'Special Assistant Ally, Gen. mcs S.* O'Brien argued (hat j blood sugar tests and the iclrcencephalogvam. may becuaUthd^state iricdiiial-'iJEufcrlich is more accessible to .the ult Correctional institutions Cranston wlicrc Robertson is ing held.”rhc court agreed to have’theblood sugar test done at theACI, and based on ihat report a decision on having (he other two tests done aL. Rhode Island Hospital will be made April ;15.'Roberfson is accused of rmir dering James D. Cook of Port: Arthur, Texas,' and Russell A. [Schilling of Newport,: Wash., in the Qualify Lunch on Broadway. An area-.- wide search : was;conducted for Robertson whowas arrowed whim he walked into police headquarters - the next afternoon and turned himself in. : ' .Earlier in Superior Court to day Judge Canellas charged the grand jury which will-sit this week. He said that he-will be on the bench here only:’this week and Judge Chrisopher Del Sesto will sit Tor the remainder of the spring session.lt;iThlo k•whcr road Gov. ell h be m it- is • ,Th a lcllcil rgcsliiof Ihnoun*and:-NoeonsiDoinlis toposslis op