MISSING—Law enforcement authorities throughout Northern Mathias of Olivehurst, William Sterling of Yuba City and Ted Weiher California have joined in a search for five missing Yuba-Sutter men of Olivehurst.(from left) Jack Huett and Jack Madruga, both of Linda. GaryThere still was no word late his morning on the location of 'ive Yuba - Sutter area men who eft for a basketball game in Chico Friday and have not been Teard from sinceThe five were members of a basketball team scheduled to play in a Special Olympics tournament in Rocklin Saturday Thev failed to return here from Chico Friday night, however, and did not show up at Sierra College for the district play-off basketball gameThe men have made such trips many times without incident, and Juanita Sterling— mother of one of them — said she knows of no explanation for their disappearanceLaw-enforcement agencies all over Northern California have been alerted to locate their car— a light blue Mercury sedan hparinc license number XQGChico and campus policewere unable to find any indication they attended the ballgame there, however. and no track of their car could befoundThey were reported missing Saturday after relatives exhausted all other possibilities in attempting to locate them.The missing men are:Jack A. Madruga, 30. of 48 Montana Way, Linda — the driver of the car; Wrilliam Sterling, 29, of Yuba City; TedW'eiher, 32. of 4639 Western Ave , Olivehurst , Jack Huett 24, of 265 Erie Road, Linda ; and Gary Mathias of Western Avenue, Olivehurst531seenCity about 6 p.m. Friday when hey got gasoline for the car at a service station operated by Mr ind Mrs. SterlingThey planned to attend a basketball game at California State University in Chico, return home Friday night and leave the next morning for the tournament in Rocklin.