THE FAILURE OF THE PILOTS OF N790T AND N721L TO SEE AND AVOID EACH OTHER. FACTORS WHICH CONTRIBUTED TO THE ACCIDENT WERE: THE PILOT OF THE C-182P, N790T, WAS DISORIENTED AND IMPROPERLY ENTERED THE TRAFFIC PATTERN DUE TO RECENT MARIJUANA USE; THE PILOT OF THE BE-95, N721L, FAILED TO PROPERLY EXECUTE A CROSSWIND LEG IN THE TRAFFIC PATTERN; AND THE LOCAL CONTROLLER FAILED TO VISUALLY MAINTAIN ADEQUATE SEPARATION OF THE TWO AIRCRAFT.