Those detained in the Heaven case include club owner Ernesto Espinosa Lobo, known as "The Wolf," who has been charged with kidnapping, as well as another bar owner, a driver and a security guard. A fifth person, Jose de Jesus Carmona, 32, is under arrest pending charges and another is a fugitive.
In another element of the case that is reminiscent of cartel warfare, one of the owners of the Heaven bar, Dax Rodriguez Ledezma, fled authorities only to turn up dead, his body dumped and burned in a rural area with that of his girlfriend and another friend.
Associated Press writer Mark Stevenson in Mexico City contributed to this report
Adriana Gomez Licon is on Twitter http://twitter.com/agomezlicon