By Tony Plohetski AMERICAN-STATESMAN STAFF Saturday, March 05, 2005 Four dispatchers suspended in addition to five officers. At 7:09 p.m. on Feb. 18, Austin police officer John Lengefeld heard a radio transmission that a Northeast Austin nightclub was on fire. The seven-year department veteran, according to documents released Friday, said he immediately thought of the song "Disco Inferno" and sent a message from his patrol car to fellow officer Josue Martinez that said "burn baby burn." Martinez replied 37 seconds later: "Hey ... LOL (laughing out loud). Those were my exact thoughts." So began more than two hours of computer...