Zygier's defense attorneys and family members had to sign confidentiality and nondisclosure agreements. Doing so prevents them from confirming or denying anything.
Information released excluded what's most important to know. Details didn't compromise state security.
Israel's top civil and human rights lawyer, Avigdor Feldman, last saw him alive. "They asked me to see him, and a day after that he was gone," he said.
"When I saw him, I saw no signs that he was going to kill himself. He sounded rational, and he asked pertinent legal questions that I can't expand on."
In 2011, the Association for Civil Rights in Israel (ACRI) petitioned to have Israel's gag order lifted. Israel's Central District denied it. A Supreme Court appeal followed.
Classified information was revealed in court. Justices advised ACRI to strike its appeal. It did so to avoid a detrimental legal ruling.
ACRI's chief legal counsel, Dan Yakir, said he first learned about an inquest into Zygier's death in court. Few details were revealed.
"As for the question of negligence," he asked, "how can it be that prisoner held in (Israel's) most secure (prison) commited suicide?"
Saying so doesn't pass the smell test. He was closely monitored 24-hours a day. He was never out of sight.