The Rishon Lezion Magistrate's court extended the detention on Saturday night of Tripolin Rahamim Wasa, the 27-year-old Netanya man arrested early Saturday morning on suspicion of stabbing to death his 78-year-old father, Almayahu Wasa. Wasa is also suspected of abusing illegal drugs.Judge Rachel Karlinsky also ordered that Wasa undergo a psychiatric evaluation.Wasa is currently being treated in the Laniado Hospital and has been hospitalized six times in the past for psychiatric treatment, his attorney said.