A jacket that may have belonged to a missing student from Saudi Arabia prompted an unsuccessful search of the South Saskatchewan River on Saturday, reports CKOM radio. Hamza Alsharief, a 23-year-old chemical engineering student at the University of Saskatchewan, went missing in December. Alsharief’s wallet and identification were found in his residence. Investigators believe he may have taken his own life. He’s described as 5’8″ with a slim build, brown hair and brown eyes.