Zygier's cell was 'intended to kill its resident' Prisoner X: Ben Zygier. An Israeli man jailed over the 1995 assassination of Israeli Prime Minister Yitzhak Rabin has provided a rare glimpse into the cell where Melbourne man Ben Zygier, known as Prisoner X, ended his life. Hagay Amir was convicted and served more than 16 years in jail for being an accomplice to his fellow right-wing extremist brother Yigal, who remains in prison for life for Rabin's murder. In his first interview since his release, Hagay Amir said that he was permitted to visit his brother in the purpose-built isolation cell in the maximum security Ayalon Prison in Tel Aviv. It is the same cell where the Australian-born, alleged Mossad agent Ben Zygier was found dead in 2010. Hagay visited his brother on 11 occasions, each time for three hours. Israel has drawn a veil of secrecy over everything regarding Ben Zygier so tight that not only was there a gag order on the existence of "prisoner X," but there was also a gag order that barred journalists from even mentioning the gag order. At the time even his jailers didn't know who he was or what he had done. It was not until Zygier's suicide was exposed by the ABC's Foreign Correspondent program, that his existence came to light. "Yes, they murdered him, it's clear, or drove him to suicide," Amir claims, of Zygier. Hagay takes out a pen and carefully draws a bird's eye view plan of the cell where Zygier was kept: a five by three metres cell with a shower and a toilet hidden by a low partition and an adjoining courtyard. There are closed circuit cameras in the ceiling corners and a complex series of doors and corridors. "This is a cell that was intended to kill its resident," Amir says. They wanted him to die and he died. They say that he committed suicide. It's all rubbish, all lies. To get to you in an emergency would take over 15 minutes just to unlock the gates. There are, let's see," he consults his sketch, "one, two, three, four locked gates until you get to your cell. By that time you can be mummified. If you're not infused with faith or an ideal to sustain you, a place like that would be very difficult to live in," he said. Most people would not stand such isolation. It is cruelty beyond the imagination. A spokesperson for the Israel Prison Service refused to comment on Amir's allegations, on account of their general nature and the fact that they refer to incidents that "supposedly happened in the distant past."