The 8th chapter of Knightfall is contained in Detective 662 (Late June 1993), by Dixon, Nolan and Hanna.
Batman spends his time in this issue fighting, and finally defeating, Firefly. Even still, many areas of Gotham remain on fire.
Desperate for attention, the Riddler hijacks a tv show, on which Simpson Flanders is being interviewed. He holds them hostage with a bomb, as he delivers his riddles.
Robin gets to the station and tackles the Riddler. Bullock is furious with him, insisting that the police had him surrounded, and the bomb could have gone off and killed everyone. Even when Montoya informs them that the bomb was a fake, Bullock remains angry.
The Huntress also appears in this issue, fighting some of the street gangs seeking to take advantage of the chaos.
The story continues in the next issue of Batman.