The 37-year-old night manager of a Southeast Little Tavern carryout was found guilty by a D.C. Suprerior Court jury yesterday of two counts of murder in the 1977 slayings of two persons in the shop following what was described in court as a love-triangle dispute.

James D. Garay, of 770 Irving St NW, was found guilty of the fatal shootings of Helen Perryman, 27, of 1801 Belle Haven Dr,. Landover, day manager of a little Tavern at 1200 Good Hope Rd. SE, and Reginald G. Cooper, 41 of 2406 10th St. NE on Nov. 9, 1977.

In a trial that lasted nearly a month, Assistnat U.S% ATTORNEY BETTE UHRAMACHER CONTENDED THAT GARAY AND PERRYMAN HAD DEVELOPE AN "INTIMATE RELATIONSHIP" THAT WAS DISRUPTED BY COOPER.

GARAY'S ATTOTNEY, CARRIE FAIR, WHO PRESENTED 11 WITHNESSES IN HIS INSANITY DEFENSE, CONTENDED THAT HER CLIENT HAD BEEN DRINKING HEAVILY ON THE NIGHT OF THE SHOOTINGS AND "DID NOT HAVE THE NECESSARY STATE OF MIND TO COMMIT THE OFFENSES" WITH WHICH HE WAS CHARGED.

GARAY, WHOSE CASE WAS HEARD BEFORE JUDGE JOHN F. DOYLE, COULD RECEIVE A MAXIMUM PRISON TERM OF UP TO LIFE-BUT NOT LESS THAN 20 YEARS-ON BOTH COUNT OF SECOND DEGREE MURDER WHILE ARMED. ON A CHARGE OF CARRYING A PISTOL ILLEGALLY, OF WHICH GARAY ALSO WAS FOUND GUILTY, HE COULD RECEIVE A YEAR IN JAIL. HE IS SHCEDULED TO BE SENTENCED ON JUNE 29.