The Tel Aviv Magistrate's Court on Sunday afternoon extended Amir Mulner and nine other suspects' custody by four days. Police presented a prosecutor's declaration regarding Mulner and his men, who are expected to be charged with possession of weapons and conspiracy to commit a crime. Mulner was taken into custody two weeks ago along with 17 other suspects during a police raid on a Ramat Gan apartment. All of the suspects were charged with conspiracy to commit a crime and possession of a gun with a silencer. Police suspect that the group convened at the time of the arrest to plan the murder of senior criminal figures. Mulner is a prime suspect in last month's car bomb assassination of senior mob kingpin Ya'acov Alperon, though police have not officially linked his arrest to the hit at this stage. Yaakov Lappin contributed to this report.