Gannemuck Prison

Gannemuck Prison was a Terran Dominion prison.

It housed former colonel Nero, a reaper convicted of destroying a Dominion science facility and murdering its personnel, until he was scheduled to be executed.

On that day, Nero escaped, breaking free from his escort, misdirecting the guards with the prison's communication system, and planting a remote-controlled explosive in a vital spot.

Nero stole a transport vessel and escaped, before detonating the explosive. This caused a "chain reaction" destroying the prison.