Rafael Cohen, the suspect arrested last week in the murder of a 13-year-old Tair Rada in Katzrin, was released Sunday morning after police were unable to connect him to the girl's death. Cohen's release came after police arrested a second suspect in the case on Saturday night: Yisrael Naftali, a man in his 40s from the Lower Galilee who was a gardener at the Nofei Golan High School where the murder took place. Cohen, a 56-year-old local resident with a criminal record, was arrested late Thursday morning. Shortly afterward, police requested - and received - a gag order on the investigation, preventing the release of any information on the case. Police said any details as to the nature of Cohen's prior offenses were covered by the gag order as evidence possibly connected to the murder. Meanwhile, classes took place as usual at the school on Sunday morning despite parents' protests, as police continued searching for clues in the death of Rada, the eighth-grader whose body was found Wednesday in the school bathroom. Police have increased security at the school since the murder, and psychologists are on hand to help students cope with the incident. Rebecca Anna Stoil contributed to this report.