11.   Various book reviewers have treated the book, which describes a hellish reformatory in which three young inmates are killed by guards, as nonfiction.

12.   Police killed six inmates in a gunbattle Thursday when the prisoners tried to escape a maximum security prison in northeastern Brazil.

13.   Police on Sunday stormed a southern Philippine prison and killed eight inmates who had held five female prison employees hostage for three days, an official said.

14.   Prisoners at a high-security Turkish prison took five guards hostage during an overnight riot in which one inmate was killed, the governor said on Saturday.

15.   Police negotiated an end to a three-day long prison rebellion in which one inmate was killed and two guards were taken hostage, officials said Wednesday.

16.   A former World War II concentration camp commander denied Tuesday that he had tortured and killed inmates and accused surviving prisoners of lying about him in court.

17.   A firefight followed in which a guard and an inmate were killed.

18.   A ninth inmate was killed in a shootout before the breakout.

19.   According to some reports, feuding inmate factions started fighting and the set a fire that killed six inmates.

20.   A subsidiary produced the Zyklon-B gas used for killing concentration camp inmates during the war.