The Shin Bet security service and the police believe that Chaim Pearlman, suspected of murdering four Palestinians and wounding several others, committed the acts attributed to him with the help of accomplices.

The suspicions emerged at Pearlman's remand in a Petach Tikvah court. Pearlman's remand was extended by six days.

Sources close to Pearlman said "There has been no progress in the investigation ever since he was arrested. The Shin Bet insists on holding him for no reason."

The Shin Bet arrested another man suspected of having a connection to Pearlman's alleged crimes on Sunday. The exact nature of the suspicions against the man were not clear, but the man was released after only a few hours. The man, an immigrant from the Former Soviet Union, is thought to be connected to the extreme right-wing, and outlawed, Kach (Kahane Chai) movement and lives in Mitzpeh Jericho.

Pearlman, a 29-year-old resident of Givat Washington, was arrested on suspicion of having stabbed to death two Palestinians in 1998 and having wounded a long list of other Palestinians. Weapons charges have also been filed against him.

As far back as ten years ago, Pearlman's name became associated with right-wing activists Itamar Ben-Gvir and Noam Federman. He was arrested several times on a range minor charges, including raising the Israeli flag on the Temple Mount, spraying graffiti, and illegal assembly. Feldman was also cleared of charges of having beaten Arabs.