The "high-profile criminal" who police said stabbed underworld kingpin Amir Mulner two weeks ago was identified Tuesday as Yaakov Alperon - a senior member of the Alperon criminal organization. Police revealed that Alperon and 18-year-old son Dror went underground two weeks ago after both of them allegedly stabbed Mulner during an "underworld summit" at the Daniel Hotel in Herzliya. Alperon is the brother of Moshe "Mousa" Alperon, a former mob boss and current Likud central committee member. Alperon, from Ra'anana, was at the hotel with his son for a meeting with Mulner and additional crime bosses to discuss future cooperation between the various organizations. At one point during the talks, police said, Alperon and his son pulled out a knife and stabbed Mulner and two of his associates. Mulner was hospitalized in moderate condition and the Tel Aviv District Police went on high alert with expectations that the stabbing would set off a round of gangland hits. Police launched manhunts on Tuesday for Alperon and his son and questioned his wife, sister and additional family members. Police rejected claims that Alperon was at a family event at the time of the stabbing and predicted that he would turn himself in following the publication of his name. Described as the criminal world's rising star, Mulner, 33, had been named as the heir apparent to jailed kingpin Ze'ev Rosenstein, who is awaiting extradition to the US to stand trial for running an international drug ring. He was said to have been a major player in Israel's gray market and is closely connected to the Abutbol and the Mousli crime organizations.